use of "When"

[muhammedsalah]

I want to know When do i use past simple tense after "When" ? and When i use past perfect? :roll:

I will be so glade to know that
bye bye​

 

[RonBee]

Q: When should I use simple past tense after "when"?
A: It depends on what you want to say. Example:

When did it happen?
​

~R

 

[muhammedsalah]

Thank you very much and I am so sorry about my mistakes because English is not my mother tongue