Crossword puzzle clue "could have told you that"

"If I've told you ___, I've told you a thousand times ..."

"___ could have told you that!"

Sounds you might make when I say "Would you rather watch your parents have sex or have your parents watch you have sex?"

She shouldn't have to ask, "Do you want to have your fortune told?"

"Told you I could do it!"

You could have it in any color you wanted, as long as it was black

"___ have told you many times before, Brexit is not a cereal bar"

"Have I ___ told you ..."