Verb wiht the past tense and past participle

Classified in English

Written at on English with a size of 1.34 KB.

1º conditional

if+present simple, will+infinitive
2º conditional
if+past simple, would+infinitive
3º conditional
if+past perfect, would have+past participle
Modal perfects
Pronom+modal verb+have+past participle
Pronom+modal verb+not+have+p. P.
Modal verb+pronom+have+p. P.+?

Prohibition (can't/mustn't)
Permission (can/be allowed to)
Ability (can/could/be able to/managed to)
Obligation (must/have to/need to)
No obligation (don't have to/needn't)
Advice (should/ought to/had better)
Possibility (may/might/could)
Deduction (can't/must)

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