It is easy for him to make her nervous.
In this sentences 'to Infinitive' is done by him.
He was terrified for them to ask too many questions.
But I am not sure in this sentence who is subject of asking. I was aiming to say he got some fear from numerous questions of them.
If 'to infinitive' comes after a 'for noun', does it always means 'to Infinitive' is done by the noun??