Отрицательные: I haven't prepared anything. You haven't heard anything We haven't changed anything. Вопросительные: What have you seen? What have we lost? What have you remembered? Утвердительные: I have asked him. I have solved it. You have guessed it.
I haven't prepared anything.
You haven't heard anything
We haven't changed anything.
Вопросительные:
What have you seen?
What have we lost?
What have you remembered?
Утвердительные:
I have asked him.
I have solved it.
You have guessed it.