“It’s so awful that I can’t (to give) you anything in return.”
give
“I’ve got the most wonderful news for you,” she said. “Jane is going to be married.” “Nonsense! Can it (to be) true?”
be
You couldn’t (to come) more fortunately: we want you to meet a friend of ours.
have come
Padraic knew where he was, because he could (to hear) the steady clocking of an axe from the direction of the woodheap.
hear
Could they still (to play) billiards?
be playing
He cannot (to think) of this himself.
have thought
She couldn’t (to cook) since lunchtime.
have been cooking
I tried to lift the window, but it was jammed. It couldn’t (to open) for years.
open
