Obligation, necessity and permission | Baamboozle - Baamboozle

English 20 Public

modal verbs - rules

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#English #B2 #Modal verbs

____ is used for strong obligations imposed by the speaker (internal obligation). The speaker uses this modal verb to express his/her authority.

must

15

_____ is used to give ver strong advice.

must

15

____ is used to tell oneself what is necessary.

must

15

____ is used in signs and notices indicating rules and laws

must

15

______ is used to talk about something that is not permitted.

must not or mustn't

15

______ is used to give very strong advice about what not to do.

must not or mustn't

15

______ does not have a past form. We use _______ instead.

must, have to

20

_____ is used to express obligation, particularly when this is imposed by someone else or by external circumstances (external obligation).

have to

15

____ is used to express lack of obligation.

don't have to

15

____ is used to express necessity.

need to

15

_______ is used to express a lack of necessity.

don't need to / needn't

15

You can use _____ or ______ or ____ when giving permission not to do something.

needn't, don't need, don't have to

25

to talk about general necessity we use _____.

don't need to

15

_______ + ________ is used to talk about an action which was unnessary, but was performd.

needn't have + past participle

25

_____ + _____ is used to talk about an action which was unnecessary, but usually indicates that the action was not performed.

didn't need to + infinitive

15

_____ (positive) and _____ (negative) are used to express obligation or give advice.

should, shouldn't

15