I could not have done such a wicked thing: it could not have been me that did it.
He could not have doneit in the room, it was so deafening.
If I had chosen her myself I could not have done better," she added, with a smile.
I was invited, indeed, to participate; but even if I had had the desire I could not have done so, since the rehearsals were carried on in the daytime.
But if, in the series of sermons which lasted from his advent until well after Christmas, he had deliberately consulted their prejudices, he could not have done better.
Had we wished to administer to his luxuries we could not have done so, for the wind off this angle rushed at us with fury, and the instant we rounded it we saw the sea broken into crests of foam making right at our bows.
The expedition sailed, and when the Gertrude arrived at Old Fort, had Hercules been set to clear the guns, as his fourteenth labour, he could not have done it.
Then I came to seek you, following the outward spoor of the waggons which I could not have done well at night.
Had they been friendly guides they could not have done us a better turn.
Here he continued very ill of a fever, and kept his bed five weeks, all which time I nursed him and tended him myself, as much and as carefully as if I had been his wife; indeed, if I had been his wife I could not have done more.
Without them we could not have done what we have done.
Without the help of the devil he could not have done this.
If your grace had not sat in the wagon, hecould not have done it.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "could not have done" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.