I don’t remember that I had even heard about this before.= I don’t remember ever having heard about this before.
Shouldn’t it be in the first sentence: ,that I have ever heard…’’
Henry advised me to look for a flat for he was unable to have my stay in his house any longer.
Shouldn’t it be: to give my stay?
I don’t remember ever having stayed in this hotel.
Shouldn’t it be:I don’t remember having ever stayed in this hotel.?
or both sentences are acceptable?
Thank You very much.