modal verbs - teoría y ejercicios

7/24/2019 Modal Verbs - Teora y Ejercicios

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MODAL VERBS (THEORY AND EXERCISES)

Un verbo modal es aquel que se usa en combinacin con un verbo principal

para expresar obligacin, prohibicin, capacidad o habilidad para realizaralguna tarea, para hacer recomendaciones, etc.

Ex. Ralph can speak three languages. You know ou shouldn!t smoke, so wh do ou do it"

#$%&' (%$')

*on verbos incompletos, es decir, les +altan tiempos verbales. (o

tienen participio ni in+initivo. 'l +altarles tiempos, utilizan otrosverbos para completar su conugacin. 's-, can/ se completa conbe able to/ , must/ con have to/, etc.

(o llevan 0s en la tercera persona del singular del presente simple,excepto el verbo have 1got2/ be able to/.$odos van seguidos de un verbo en in+initivo sin to/ , exceptoought to/, have to/, be able to/ used to/.3omo no necesitan verbo auxiliar, construen la interrogativainvirtiendo el orden del sueto el verbo, la negativa a4adiendo

not/.(unca uses do, does, o did/ en las preguntas en las que a est5notros verbos modales como can, must, etc..

6. %789:'39;(

&ust 1deber, tener que2< ou must train ver hard i+ ou wantto be a success+ul athlete/.

=ave to 1tener que2< 9 have to get up at six ever morningexcept *undas/.

(%$'< must/ se utiliza para dar rdenes, mandatos,obligaciones. *i el que habla desea suavizar esta autoridad, sesuele usar have to/. =ave to must/ se complementan porquetienen un signi+icado similar. >or ello se utiliza have to/ entodos los tiempos que +altan a must/ 1por eemplo, had to/ es el

pasado de/ must/ will have to/ ser-a el +uturo de must/2.

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2/17

?. >R%=97939;(

&ustn!t 1no deber2< You mustn!t make a noise during theexam/.

'ren!t@weren!t allowed to 1no estar permitido@no estabapermitido2< $eachers aren!t allowed to smoke inside theschool/.

3an!t@couldn!t 1no poder@ no pod-amos2< You can!t takephotos using a +lash in this museum/.

(%$'< &ustn!t/ es el modal mAs usual para indicar prohibicin.

B. (E3E*9C'C

(eed 1necesitar2< De need to bu some butteries +or thecamera/.

. >ER&9*% 1pedir dar permiso2

3an 1poder2< 9 hate that song) 3an 9 put something di++erenton"/ Yes, ou can./

&a 1poder2< &a 9 use our computer " Yes, ou ma/. 3ould 1podr-a2< 3ould 9 use our computer"

're@were allowed to 1permitir2< & sister is allowed to use adictionar in her translation exams at universit. 9ncredible)/.

(%$'< 3an, could ma/ son los modales mAs comunes parapedir dar permiso. 3an could/ se utiliza en un contextoin+ormal &a/ se utiliza en un contexto +ormal.

F. 'U*E(39' CE %789:'39;( % CE (E3E*9C'C

(eedn!t 1no necesitar2< You needn!t give me back m camerauntil 9 go on holida next month./ Con!t have to@didn!t have to 1no es necesario que 2


3/17

J. RE3%&E(C'39%(E*, *U:ERE(39'*, 3%(*EG%*,%>9(9%(E*

*hould 1deber-a2'39C'C Y 3%(%39&9E($% 1>RE*E($E2

3an 1saber2'39C'C Y 3%(%39&9E($% 1>'*'C%2

3ould 1sab-a2< *he was a gi+ted child and could read when shewas onl three ears old. was@were able to 1+ue capaz de,pudo 2< 9 was abroad on holida

at the time o+ the general Election but 9 was able to vote b post./(%$'< 3uando nos re+erimos a una habilidad que se tuvo en unaocasin concreta del pasado se utiliza was able to/.

N. 'U*E(39' CE ='7989C'C % 3'>'39C'C E( E8 >RE*E($E

3an!t 1no sabe2


4/17

66.>%*97989C'C@9(3ER$9CU&7RE

*e utiliza might, ma o could/ P in+initivo para hablar deposibilidad en el +uturo o de posibilidad re+erida a actividades

presentes. &a 1puede que, tal vez2< *ome students ma +ail the exam/. &ight 1pudiera ser que2< $he might go to the opera, but the pre+er

rock concerts. 3ould 1podr-a2< =e could be at a +riend!s house/.

(%$'< 3ould/ es menos +recuente que ma might/&ight/ es una posibilidad mAs incierta que &a/

*e emplea ma, might o could P beP Qing para hablar de

actividades que pueden estar ocurriendo en el momento de hablar1Goe might be doing his homework or he could be watching the+ootball on tv.

6?.CECU339%(E*

Una deduccin consiste en llegar a una conclusin a trav5s de unainterpretacin lgica que se apoa en algKn tipo de evidencia. 'lgunasveces la conclusin es mu probable 1estamos seguros de ella o casi

seguros2 otras veces, mAs que ser una conclusin probable, se trata deuna conclusin posible 1no estamos mu seguros de ella2. &ust P Q in+in. 1debe 2< para re+erirnos a conclusiones probables

expresadas en +orma a+irmativa de las que estamos seguros o casiseguros. Ex./>amela isn!t a t home and 9 know she works a lot.*he must be at work.

3an!t P Q in+init 1no puede2< para re+erirnos a conclusionesprobables expresadas en +orma negativa de las que estamosseguros o casi seguros. Ex./$eresa can!t like dancing ver much.*he hardl ever dances when 9 see her at the disco.

&ust@can!tP beP Qing < para expresar conclusiones probables delas que estamos seguros o casi seguros que se re+ieren a hechosque estAn ocurriendo en el momento de hablar.Ex< 3hris is verquiet, isn!t he" Yes, he must be thinking about something.

6B.='3ER %RE39&9E($%*

3an< 3an 9 help ou/ 1S$e puedo audar"2 9(%R&'8 Dill< (ever mind, 9 will pick ou up tomorrow morning. 1(o te

preocupes, te recoger5 ma4ana por la ma4ana2. %R&'8


5/17

Dould< Dould ou like anthing +rom the shop" 1STuerr-as algo dela tienda"2 %R&'8

6.>EC9R ' %$R' >ER*%(' TUE =':' '8:%

3an@could. Ex. 3an@could ou close the door"/ 9(%R&'8 Dill@would. Ex. Dould@will ou close the door, please" %R&'8

6F.E>RE*'R =V79$%* Y RU$9('* E( E8 >'*'C%

Dould< Dhen 9 was a child we!d go to *cotland ever summer/1 3uando era un ni4o -bamos a Escocia todos los veranos2.

Used to< *he used to pla with me in the plaground when we were

at school. 1Gugaba conmigo en el patio cuando estAbamos en elcolegio2.

6J.%RE3ER*E U(% &9*&% >'R' ='3ER '8:% *hall< shall 9 carr our bags"1S$e llevo las bolsas"2 %R&'8 3an< 3an 9 carr our bags" 1S>uedo llevarte las bolsas"2

9(%R&'8(%$'< *hall/ se utiliza slo con la primera persona 19@we2.

MODALES PERFECTOS

*e +orman a4adiendo al modal un in+initivo per+ecto, cua estructura eshave P Qparticipio 0ed, si es regular o la tercera columna de los verbosirregulares. *e usan para re+erirnos a acciones pasadas.

(eedn!t P have PQparticipio 1no necesitaba haber@ no ten-a quehaberI2< para se4alar que una persona hizo algo aunque esto nohubiera sido necesario.Ex< *he needn!t have taken a taxi. 9 wouldhave picked her up i+ she had phoned me.

*hould@ought to P have P Qparticipio 1deber-a haber I2< paraindicar que una accin +ue poco sensata o que no se sigui unconseo en el pasado.Ex< =e should have locked the door.

&a@might@could P have P Q participio 1puede@podr-a haber I2ara expresar unaconclusin probable expresada en +orma a+irmativa que se re+ierea un hecho del pasado.Ex< err said he woul phone me but he didn!t. =e must have +orgotten.

3an!t P have P Qparticipio 1no puede haberI2< >ara expresar unaconclusin probable expresada en +orma negativa de la que estamosseguros o casi seguros que se re+iere a un hecho del pasado.E< 9saw 3arolina in the street toda. *he can!t have gone on holidaet.

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7/17

6. 39R38E $=E 3%RRE3$ '(*DER.

'. You 1ma@must2 eat three nutritious meals a da i+ ou want to be health.7. De in rance this summer. 1Dould@ could2 we spend a +ew das with ou"

3. You 1shouldn!t@should2 be respect+ul o+ the elderl.C. 9+ ou want to have dinner at the restaurant, ou 1are ableto@ ought to2 book atable in advance.

E. 9n order to be accepted to universit, ou 1might@have to2 have good marks inour exams.

?. 988 9( $=E 3%RRE3$ %R& % $=E &%C'8* R%& $=E 89*$7E8%D. $=ERE &'Y 7E &%RE $='( %(E 3%RRE3$ '(*DER.

*hould@ought to@ must@ can@ might@ musn!t@ ma

$he computer is a wonder+ul invention, however ou WWWWWWWWWW use it care+ull. 9norder to avoid losing documents, ou WWWWWWWWWW alwas save everthing ou tpe. 9naddition, ou WWWWWWWWWWW print out a cop o+ all important documents. %ne o+ thegreatest +ears o+ computer users is a virus. $here are certain dates on which ou

WWWWWWWW turn on our computer +or +ear o+ in+ection. Your computer WWWWWWWW get avirus i+ ou insert used diskettes, so ou WWWWWWWWWW tr to avoid doing so. &oreover,ou WWWWWWW want to bu an anti0virus program.

B.3=%%*E $=E &%*$ '>>R%>9'$E *E($E(3E.

6. De could have bought the house +or less mone.a. De reall should. 7. 9t is a pitt we didn!t

?. 9 advised him to spend more time on his studies. (ow he is sorr he didn!t listen.a. =e should stud more. 7. =e should have studied more.

B. Cavid would have booked ou a ticket.a. Dh didn!t ou ask him to" 7. Dh don!t ou ask him to"

. 9 am an onl child. 9 am sorr m parents had no more children.a. & parents should have had more children. 7. & parents must have had morechildren

F. =e didn!t come to our meeting esterda.a. =e must have had another meeting b. =e must have another meeting

. $R'(*8'$E $=E*E *E($E(3E* 9($% E(:89*=

6. >odriamos haber ido a ver una pelicula.

?. Ceben terminar antes de las J.

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8/17

B. STu5 piensas que deberia haber hecho"

F. REDR9$E E'3= *E($E(3E U*9(: ' &%C'8 % &%C'8

>ERE3$.

6.Crinking alcohol while ou drive is prohibited b law.You...?. >erhaps i will go to the cinema.9...B.9 am not able to get up earl in the morning.9....9 suggest ou sleep at least seven hours the night be+ore a big examYou...

F.9t is a pitt we didn!t spend our last holida in the countr.De...J.9 don!t think 9 told ou all the news.9...L.9t was wrong o+ the manager to emplo 6B ear old children$he manager...M.=e is late +or work again. =e probabl woke up late.=e...

J. ERR%R 3%RRE3$9%(

6.You must to save all the documents on our computer.

?. & +ather might had helped ou esterda i+ ou had asked.

B. Qictor should spent more time studing +or esterda!s exam

.Young people toda ought be more polite to their parents.

F.(oemi can have completed the assignment on time i+ she had tried.

L. 3=%%*E $=E 3%RRE3$ D%RC*.

6. $his is top secret. You 1mustn!t@don!t have to2 tell anbod.?. 8ook at those clouds. 9 think it 1must@might2 rain soon.B. Co ou have toothache" Con!t ou think ou 1should@have to2 go to the dentist". 9 would like to talk to ou . 1&a@Dould2 9 call ou at home"F. Dhen she was ounger, she 1can@could2 run much +aster.J. 9t was ver di++icult, but Cann 1might@ was able to2 get a ticket +or the +ootball

match

M


9/17

M. 3=%%*E $=E &%*$ '>>R%>9'$E *E($E(3E $% %88%DE'3= E'&>8E

6. De could have gone to see a +ilm.a. Dhat a pit we didn!t go b. Dh don!t we go"

?. 9 should have studied +or the exama. 9 knew all the answers b. 9 didn!t know an o+ the answers

B. $he have been looking +orward to the part all week, but the aren!t here et.a. $he couldn!t have +orgotten about it b. $he couldn!t +orget about it

. =e still hasn!t arriveda. =e must take the wrong turning b. =e must have taken the wrong turning

F. You could have helped her when she asked ou to.a. Dh don!t ou" b.. Dh didn!t ou"

J. 7elieve me, 9 would have visited hera. 9 ust didn!t have the time b. 9 ust won!t have the time

N. 3%&>8E$E $=E *E($E(3E* U*9(: &%C'8 >ERE3$*.

6. & motorbike has disappeared.*omeone WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

?. 9t is possible she told ou a lie.*he WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWB. >erhaps he called me, but 9 was out earlier

=eWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

. 9t was wrong o+ ou not to apologise to her.You WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6O. 3=%%*E $=E 3%RRE3$ %>$9%(.

'. Dhen Cavid was three ears old he WWWWWWWWWW write his own name.6. must ?. could B. is able to7. 9n m opinion, *heila WWWWWWWWWWW apologise +or her rude behaviour.6. should ?. have to B. can3< >upils WWWWWWWWWWWW smoke in the school grounds. 9t is +orbidden.6. couldn!t ?. needn!t B. musn!tC. $he bus WWWWWWWWW be late because o+ the heav rain.6. should ?. might B. can

E. 9!m sorr, 9 WWWWWWWWWWWW help ou. 9 don!t know anthing about cars.6. shouldn!t ?. can!t B. needn!t

N


10/17

66. 3=%%*E $=E 3%RRE3$ D%RC*uede que vaamos al campo el prximo +in de semana. 9ncluso podr-amos ir alextranero.

. &is amigos deben vivir a en su nueva casa pero puede que no haan llevadolos muebles todav-a.

WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

F. (o debes comer chicle en clase. EstA prohibido.

6O


11/17

J. SQamos al cine esta tarde"

L. S=ar-a usted el +avor de cerrar la puerta"

M. S>odemos irnos ho antes" 1ale+e2WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

N. S>uedes audarme, papA"WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6O. S>odr-a usted traer los eercicios, &r *mith"WWWWWWWWWWWWWWWWWWWWWWWWWWWW

66. S8eo o el texto" WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6?. $endr-a que tomar mAs verduras usted. 1a unpaciente2.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6B. (o puedes hablar alto en clase. 1' unestudiante2WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6. >uede que vivan cerca. WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6F. >odr-a ser que vinieran. WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6J. S>uedes darme un par de euros" 1' un amigo2WWWWWWWWWWWWWWWWWWWWWWWWWWW

6L. Sle abro la puerta" WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6F. =%D C% Y%U *'Yedir permiso.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW. Car conseo.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWF. >edir a otra persona que haga algo.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

J. %+recerse uno mismo a hacer algo.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWL. >ara prohibir algo.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWM. >osibilidad de que algo ocurra.WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWN. 9mposibilidad con respecto al presente.WWWWWWWWWWWWWWWWWWWWWWWWWW6O. 3erteza respecto al presente. WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6J. 3=%%*E $=E 3%RRE3$ %>$9%(.

*tudents in modern secondar schools in the UX.

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12/17

*ometimes +eel that the have to@should to complain about homework, but li+e isn!t toobad. 9t is true that the can!t@must stud a lot, but FO ears ago schools were stricter.*tudents mustn!t@weren!t allowed to speak without permission and had to@needn!t showteachers a lot o+ respect. $eachers and head teachers are able to@could use corporal

punishment i+ students broke the rules. 'lso, in man boarding schools and private

schools, senior students 1older2 need to@were allowed to hit unior students 1ounger2.Guniors had to@must obe the seniors. $he seniors could@must tell the uniors to cleantheir shoes or make their beds. $his might@can!t seem strange to teenagers toda, butschool authorities thought that uniors should@ought to learn how to serve. ortunatel,oung people nowadas needn!t@mustn!t worr about that.

6L. 3=%%*E $=E 7E*$ '(*DER%*9$9QE %R (E:'$9QE %R& % *=%U8C='QE, &U*$ ='QE %R 3%U8C ='QE/ $%:E$=ER D9$= $=EQER7 9( 7R'3XE$*

Gim Xell loves camping.=e remembers an earl camping experience.De packed up to leave at F.OO. De WWWWWWWWWWWWWWWWW1sta2 longer

because it was so cold. De picked up all the litter care+ull, but weWWWWWWWWWWWWWW1pa2 more attention to our +ire. DeWWWWWWWWWWWWWW1leave2 the +orest without checking that the +ire wasout. De WWWWWWWWWWWWWW1notice2 that the +ire was still burning.%ne o+ the campers looked back and saw leaves burning near thecamp+ire. $he wind WWWWWWWWWWWWWWWWWW1blow2 the leaves onto the+ire. De rushed back and threw water onto the +lames. De were luck

that we saw the burning leaves. 9t WWWWWWWWWWWWWWWWWW1easil cause2 adisaster./

6?


13/17

6N. 3=%%*E $=E 7E*$ '(*DER'(9*=.

6. Yo no puedo leer esta carta porque he perdido mis ga+as graduadas.

?. Cespu5s de tomar un peque4o descanso, nosotros +uimos capaces decontinuar.

B. 3uando era un ni4o, 5l pod-a bailar como un pro+esional.

. (osotros podremos viaar a &adrid ma4ana. El coche estA+uncionado ahora.

F. $odos los ni4os menores de 6J a4os deben ir al colegio.

J. 8os conductores deben tener una licencia para conducir antes de queellos conduzcan solos.

L. 'unque hace sol, puede que ma4ana llueva. 3oge el paraguas elchubasquero si ma4ana vas de viae.

M. &ar-a puede visitarnos la semana prxima, pero no esto mu

seguro.

6B


14/17

N. (osotros no necesitamos acabar los deberes ho. *on para elprximo ueves.

6O.(osotros tuvimos que caminar a casa porque perdimos el Kltimo

autobKs anoche.

66.Yo tengo que acostarme temprano durante la semana, pero o notengo que acostarme temprano los viernes por la noche.

?6. REDR9$E $=E*E *E($E(3E* RE>8'39(: $=E U(CER89(ECD%RC*.

3an@can!t@could@couldn!t@must@needn!t

6. 9 am not able to get up ver earl in the morning.

?. You don!t have to shout0 9 am not dea+.

B. 9 have to get a new passport be+ore the summer.

. Dhen he was ounger, he was able to run much +aster.

F. *he is able to help ou with our proect.

J. *he doesn!t have to return the book toda.

L. Crivers have to observe the speed limit.

M. $heir parents weren!t able to pa +or extra lessons.

??. 3=%%*E $=E 3%RRE3$ '(*DER.

6. Ron doesn!t +eel well. =e WWWWWWWWWWW see a doctor.a. should b. had to c. ought to

?. Dhen the children were oung, the WWWWWWWW speak English.Un+ortunatel, the don!t remember an o+ it.

a. must b. could c. might

B. 9t WWWWWWWW rain tomorrow. $ake umbrellas and raincoats with ouon our trip.

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15/17

a. can!t b. ma c. must

. 9 WWWWWW speak +our languages. & parents taught me all +our.a. can b. need c. should

F. 'lthough 9 broke m +inger, 9 WWWWWWWWWWsign m name.a. was able to b. have to c. couldn!t

J. You WWWWWWWW review the work done in class or ou will +orget it.a. should b. ma c. needn!t

L. ou WWWWWWWWWWeat so quickl. You will get a stomach0ache.a. can!t b. doesn!t have to c. shouldn!t

M. 's a child, he WWWWWWWWW dance like a pro+essional.a. can b. could c. is able to

N. $he WWWWWWWWW travel to 8ondon tomorrow.a. can!t b. will be able to c. couldn!t

6O.Yesterda, 9 WWWWWWWWW enter the computer room because 9 had aspecial ke.

a. was able to b. could c. can

?B. $=E*E 'RE $=E *3=%%8 RU8E*. REDR9$E $=E& U*9(:&U*$(!$, C%(!$ ='QE $%, &U*$, (EEC(!$, *=%U8C(!$/.

6. >upils are not allowed to leave the school be+ore classes are over.

?. >upils are not allowed to sta in the classroom during breaks.

B. >upils are obliged to wear the school uni+orm ever da.

. >upils are not obliged to wear closed shoes. $he ma wear sandalsinstead.

F. >upils are obliged to participate in gm classes.

J. >upils are not obliged to participate in competitive sports games.

L. >upils are advised not to leave expensive things in the classrooms.

6F


16/17

?. 3%&>8E$E $=E*E *E($E(3E* U*9(: $% 7E '78E $%,*=%U8C, %U:=$ $%, &U*$, ='QE $%, (EEC/

6. You have burnt oursel+. You WWWWWWWWbe more care+ul.

?. De WWWWWWWWWWWWWW leave soon. $he last bus leaves in 6O minutes.B. 9 WWWWWWWWWWWWWWWWW see ou tomorrow. 9 will have some +ree timethen.

. You WWWWWWWWWWWWWWW rush. $here is plent o+ time. $he +ilm onlstarts in two hours.

F. You WWWWWWWWWWWWWWW be quiet in the librar. 9t is +orbidden tomake a noise..

J. De WWWWWWWWWWW walk home because we missed the last bus lastnight.

L. $he police WWWWWWWWWWWWWW catch the thie+ as he was climbing outo+ a window.

M. >arents WWWWWWWWWWWWkeep medicines wa +rom children. 3leaning+luids are also dangerous.

N. >aul WWWWWWWWWWWWW drive the car because his mother has brokenher hand.

6O. You WWWWWWWWWWW worr. 9 will take care o+ the children.66.You WWWWWWWWWWWW see a dentist regularl. $hen, ou will have

health teeth.

?F. 988 9( $=E 78'(X* D9$= &U*$, &U*$(!$, ='C $%, (EEC(!$.

6. You WWWWWWWWW throw things out o+ the car window.?. You WWWWWWWWW hurrH we have got plent o+ timeB. $he doctor sas she WWWWWWWWW stop smoking. =e +orgot his hat, so he WWWWWWWWW run back home to get it.F. You WWWWWWWWWWWgo shopping right nowH You can go later.J. $he matter is ver importantH ou WWWWWWWWWWWWallow me to see the

manager right awa.L. *he WWWWWWWWW do her homework last night because she didn!t have

time during the da.M. '+ter her illness last ear, she WWWWWWWWWW be ver care+ul not to

catch a cold.N. Everone WWWWWWW carr some +orm o+ identi+ication with them.

?J. REDR9$E $=E %88%D9(: *E($E(3E* D9$= $=E'>>R%>9'$E &%C'8.

6. >erhaps it will rain toda. 1ma29tWWWWWWWWWWWWWWWWWWWWWWWWWWWW

6J


17/17

?. 9t!s a good idea to take some mone with ou. 1should2.YouWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

B. 9i!s not necessar to clean our room right now. 1need2You WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

. 9 suggest ou sa goodbe be+ore ou leave. 1should2You WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWF. You know how to do that b oursel+. 1can2You WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWJ. >arents have an obligation to teach their children the di++erence

between right and wrong.1must2>arents WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWL. 9t is necessar +or Cad to get up ver earl tomorrow morning.1have

to 2.CadWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWM. 9n the +uture, children will know how to use computers be+ore the

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6L

modal verbs - teoría y ejercicios

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