have sb do 是让.....做某事 暗示使和让含义的动词,不带to
have sb doing 是让.....不断做......
have sb to do 是有某人,或某事 要做
例如: I have a student to look for 我有一个学生要找
have sb done 是遭遇,或者让某人被做 done 过去分词表被动含义
例如 I have a dog looked after 我有一只狗要人照看
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have sb do 是让SB去DO
have sb doing 是让SB去不断做
have sb to do 一般用have sth to do 较多 to do 来润色sth.
have sb done 也一般用 have sth done 较多,暗示STH被做
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