Trzeciego okresu warunkowego używamy, gdy wyobrażamy sobie konsekwencje czegoś, co nie spełniło się w przeszłości.
|'If' -clause: past perfect||main clause: 'would have /should have'|
|be:||If I had been taller,||
I would have become a policeman.
|have:||If he had had any money,||he would have left home.|
|past perfect:||If we had gone by car,||we would have saved time.|
|past perfect progressive:||If I had been trying harder,||I would have succeeded.|
|could have;||If I could have stopped,||there wouldn't have been an accident.|
|'If' -clause: past perfect tense||main clause: modal|
|If he had known the facts,||he could have told us what to do.|
|If he could have got the facts,||he might have told us what to do.|
|If he had been here yesterday,||he could have told us.||ability|
|If he had been here yesterday,||he might have told us.||possibility|
|If he had received a present,||he should have thanked her.||duty|