I'm trying to understand the perfect aspect of the verbs and I am not sure whether both are correct: He denied having killed him He denied he had killed him. If not, what is the problem? ...
My question might seem to be stupid enough, it's basic grammar, I believe; however, I'm at my wits' end. Should we use Past perfect or Past Simple in the following sentence: He promised/ had ...
In an essay I'm about to write I'm assessing two products (I used product A but now thinking whether or not the B could have been better). Could I say: ...it is important to perform a comparison ...