has said
I don't think he said anything.
No creo que aún nadie le haya dicho a Tom.
I don’t think anyone has told Tom yet.
Es notable que él no haya dicho nada al respecto.
It's remarkable that he hasn't said anything about it.
Puede que el doctor haya dicho eso.
The doctor may have said that.
Puede que haya dicho algo sobre ello, pero no recuerdo.
I may have said something about it, but I don’t remember.
Dudo de que alguien lo haya dicho.
I doubt anyone said that.
I don't think he said that.
No puedo creer que Tom haya dicho sí.
I can't believe Tom said yes.