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  Passive
Simple Progressive Perfect Perfect Progressive
Present , , am is asked are , , am is being asked are , () have been asked has Perfect Progressive Perfect
Past , , - was asked were was being asked were , , have been asked has
Future , will (shall) be asked Future Progressive Future Simple , will have been asked
be V3 be being V3 have been V3

Modal Verbs

can, could, must, may, might, should, have to, ought to, need. , , . ( ought to have to) to. : I can swim. .

He must visit a dentist. - .

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Present Simple Past Simple Future Simple
can , be able to , can   am is able to are could   was able to were ___   shall be able to will
must , , , have to be to , must   have (has) to   am (is, are) to ___   had to   was (were) to ___   shall (will) have to ___
may , be allowed to may   am is allowed to are might   was allowed to were   ___   shall (will) be allowed to    

, , , .

can , + She can read English. -. - She cannot read English. -. ? Can she read English? - -?
may , + You maytake my pen. . - You may nottake my pen. . ? May I take your pen? ?
must + We must do this work today. . - We must not (mustnt) do this work today. . ? Must we do this work today? ?
have to , , + They will have todo this work tomorrow. . - They will not have todo this work tomorrow. . ? Willtheyhave todo this work tomorrow? ?
be to ( , , ) + I am tovisit my granny. . - I am not tovisit my granny. . ? AmI tovisit my granny? - ?
should () + You shouldgo to the dentist. . - You should notgo to the dentist. . ? ShouldI go to the dentist? ? Do you think I should go to the dentist? ?

 

 





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