Is it allowed to use the "if + would" conditional when speculating about a polite request that could have taken place in past? I know that the would structure can be used to make a polite request, but can it be used for making one in the past as well?
If he would have told me what he wanted for lunch, I would have cooked it for him.
Also, may I use this construction in the past perfect tense?
Example: If he "would had told" me what he wanted for lunch, I would have cooked it for him.