①have to do
必须,不得不[+to-v]
I have to go right now.
我马上得走。
②have sth. done
使,让;招致[O7][O8]
Pa's had his hands burned.
爸的手给烫伤了。
I've had the stove lighted.
我已经让人把炉子点着了。
③have done
(加过去分词,构成完成时态)已经;曾经
They haven't finished the job yet.
他们尚未完成该项工作。
(用于虚拟语气,表示与过去事实相反的假设)(假如那时)...的话
She might have come if she hadn't been so busy.
当时若不是那么忙,她是可能来的。
④have sb. doing
(用于否定句中)容忍;允许[O4]
I won't have anyone smoking in here.
我不容许任何人在这里抽烟。
追问有没有再具体些的?