Question

I'm so sorry to keep you waiting. 这句英语的不定式作什么？ you 后面为什么是waiting?

I'm so sorry to keep you waiting. 这句英语的不定式作什么？ you 后面为什么是waiting?

Answer 1

to keep you waiting做的是原因状语。you后面用waiting取的是一个keep的用法,表示使某人保持某种状态，或使某人长时间做某事,所以用doing表示延续。比如。The teacher kept me standing for two hours to punish me.
It's wrong for you to keep them working a whole day.

Answer 2

不定式 to keep you waiting 作原因状语。
keep you waiting ,
现在分词waiting 作 keep 的宾语 you 的䃼语。

Answer 3

不定式是表语补足语。keep sb.doing sth.是固定句型，所以应该用keep you waiting.

Answer 4

不定式表原因，解释我为什么感到抱歉
keep＋宾语＋adj/v-ing

Answer 5

I'm so sorry to keep you waiting.
让你久等我很抱歉。
不定式短语to keep you waiting在句中作原因状语，表示I'm so sorry的原因。