现在完成时 现在完成进行时 一般过去式 For 和Since 含在现在完成进行时里,没种5句 急用

I have been a teacher for five years.
She has known her for many years.
I have been a teacher since 2000.
She has known her since last week.
I have been teaching for five years.
She has been knowing her since last week.

Jared has been off work since last Thursdday.I have not been back to * since 1997.He left home at 18 and hasn't been back since.He has felt better since he stopped smoking.Kevin has just moved...