To have + Verb -3
Ali seems to have been ill a lot.
I am hoping to have read the guide book before we got to London.
I would like to have been there.
They will pretend to have been sleeping
She seems to have been waiting there for hours.
They were hoping to have been paid already.
She regretted having told us about the money.
We thanked them for having supported us.
She still has nightmares from having been locked up in a small dark cupboard for hours.