Review & Practice - Grammar Rules

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Rule

NO !!!!!!!!!

YES :-)

Don't add 3rd person final -s/-es to modals

She cans see it.

She can see it.

Use the simple form of the main verb after a modal

She can sees it.

She can see it.

Don't use the infinitive of the main verb with modals

She can to see it.

She can see it.

There is no past tense of modals verbs (no -ed).

Another modal must be used to express past tense.

She caned see it yesterday.

She could see it yesterday.

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There is no past tense of modals verbs (no -ed form). Another modal must be used to express past tense.

The Past Tense of the Modal Verbs in English.PNG