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PAST MODALS

Past Modals come in two forms.

The first type is the easiest and usually requires only a simple word change:I can drive.I could drive when I was 16.I have to go to the City.I had to go to the City.Lenny will pay tomorrow.Lenny said he would pay tomorrow.

(present ability)(past ability)(present obligation)(past obligation)(future intention)(future reported from the past)

Past Modals with have

Some PAST MODALS can be formed by using "have" + the past participle of the main verb immediately after the modal. ("should have", "could have", "would have", etc.)

However, since modals express possibility, intention, obligation, etc., they do not always indicate a definite tense. Therefore, when using past modals with have, special meanings need to be considered.

I should go to the funeral.

I should have gone to the funeral.Joe might take Karen to the airport.Joe might have taken Karen to the airport.Joe could have taken Karen to the

(I feel an obligation to go--later.)(I didn't go. Now I regret it.)(It's a future possibility.)(He may be on his way there now.)(Most likely he didn't.)

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airport.Joe would have taken Karen to the airport.Otis didn't come to work yesterday.He had to take care of his children.His children must have been sick.

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(He didn't. He had an excuse.)

(Past fact)(Past obligation)(Conjecture about the past)

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