have no business doing sth
have no business to do sth
無權做某事；沒有道理該做某事，不應該做某事；做某事是沒有道理的
兩個句型如果非要說明它們的差別，那麼，動名詞含有強調動作的完成性；不定式含有強調動作的将要性。
請學習以下經典例句，以達到運用自如、融會貫通：
You have no business being here.
你無權待在這裡。
You have no business going into such places all by yourselves. If your parents take you, of course, that's another matter.
你們不該自己去這些地方。不過如果是父母帶你們去的，那就另當别論了。
You have no business to do that.
你沒權做那事。
Really,I had no business to be there at all.
真的，我根本沒有道理呆在那裡。
You have no business entering\ to enter that building after dark.
天黑之後你們無權進入該大廈。
You have no business saying things about me.
你無權談論我的是非。
She had no business to publish his letters to her.
她無權發表他寫給她的信。
You have no business to act in that way.
你沒有權力那樣行事。
You’ve no business going into his office and talking to him like that.
你不應該到他的辦公室那樣跟他說話。
You have no business bursting in on me like that.
你不應該這樣匆匆打斷我的話。
You have no business spending money like that.
你不該那樣花錢。