have sb to do/doing/do都用在什么情况讲一下这三者的用法我可以确定有have sb do sth,可是在题上见到doing,答案说是固定用法,我又好像见过to do,能不能帮忙区分下,最好别抄别的回答,我都看过了

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have sb to do/doing/do都用在什么情况讲一下这三者的用法我可以确定有have sb do sth,可是在题上见到doing,答案说是固定用法,我又好像见过to do,能不能帮忙区分下,最好别抄别的回答,我都看过了
have sb to do/doing/do都用在什么情况
讲一下这三者的用法
我可以确定有have sb do sth,可是在题上见到doing,答案说是固定用法,我又好像见过to do,能不能帮忙区分下,
最好别抄别的回答,我都看过了

have sb to do/doing/do都用在什么情况讲一下这三者的用法我可以确定有have sb do sth,可是在题上见到doing,答案说是固定用法,我又好像见过to do,能不能帮忙区分下,最好别抄别的回答,我都看过了
have sb do sth 让某人做某事(do前的to省略,或者说不能加)
have sb doing sth 其实也有,但一般用keep sb doing ,让某人一直做某事
have sth to do 有某事要做 如,i have a lot of homework to do