关于"You must have enjoyed yourself"一句这句话里的must不是情态动词吗?为什么后面没有用动词原形啊?ps:在我概念里have enjoyed是现在完成时~

You must have missed it You must have something,anything! Now you must have lunch. we must have missed you along the you (should,must,would) have told me you must have very good habits. you must have made mistakes,是什么意思? You must have at least onecomputer opponent 关于must,can表明推测语气时的用法.Why don't you phone Kate now?She ____ yet.A.can't have leftB.wouldn't have leftC.might have leftD.must have left为什么不选D选B? You must have faith in who you are.尽快! You must have returned you your Dept for your studies. you donnt have like him,but you must respect him! You must wash yourself ______ you have meals填什么 you must have a good d----空上应该填什么快啊、急西西、粗心大意忘了说了、是关于在考试前的准备原句是、you must have a good d_____and go to bed at usual time is it he must have fallen or he must have fell?whythank you if you don't have what you like,you must like what you have.求教意思 must have 关于You must have enjoyed yourself一句这句话里的must不是情态动词吗?为什么后面没有用动词原形啊?ps:在我概念里have enjoyed是现在完成时~