modal+have+past participleCOULD+ have +Past Participle expresses something that could have been done in the past.. MAY/MIGHT+have +Past participle expresses something that might have ha
Trang 1THE MODALS IN PERFECT!! (modal+have+past participle)
COULD+ have +Past Participle expresses something that could
have been done in the past Eg You were acting very clumsily at the party! You could have broken aunt’s Chinese vase!
MAY/MIGHT+have +Past participle expresses something that
might have happened in the past, that there was a possibility for it to happen if something was different Eg Mrs Jones might have got wet if
we hadn’t given her our umbrella yesterday
SHOULD+have+Past Participle the reader usually uses it when he
wants to criticize a past action or express that something was or wasn’t a good idea and should have been done in a different way Eg You
shouldn’t have told her that! I told you it was a secret!
WOULD+have+Past Participle expresses a past
situation/probability if something happened in the past Eg This building wouldn’t have fallen if the builder had been more experienced
MUST +have+Past Participle We use it when we want to
make a positive conclusion in the past Eg He must have practiced
hard for the exams He looks exhausted
CAN’T +have+Past Participle We use it when we want to
make a negative conclusion in the past Eg They can’t have been in the
house yesterday The lights weren’t on