关于when英语可以后面加终止性动词吗?可以加吗

when疑问句或名词从句引导词：什么时候的意思；
When do you get up?
Do you know when he gets up?
when引导状语从句,“当……时候"
When I saw him,I was very happy.
用做并列连词,相当于:"and at that time"
I was about to leave when my father came in.
当然可以了.
问句中常用终止性动词的：
When did he arrive?
从句：
When he arrived,we left.

可以。比如：when closing the door