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evidence expression advantage principle
appearance expression description look
couldn’t hear couldn’t have heard didn’t hear wouldn’t have heard
couldn’t hear mustn’t hear couldn’t have heard wouldn’t have heard
I heard I had heard did I hear have I heard
heard heard of heard from have heard
heard to hear hearing have been heard
heard heard of listened to listened
hear have heard be heard hearing
heard about have heard about heard have heard
have heard from since have
being sung, sang sang, singing sung, sing to be sung, to sing
situations facts chances possibilities
In case Though Even In spite of
Do you have Did you have have you had Had you had
heard of heard about heard from heard
heard will hear have heard had heard
mustn’t have heard shouldn’t have heard couldn’t have heard needn’t have heard
might not have heard should not have heard mustn’t hear shouldn’t hear
have heard from since have
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