be
been -
I/be/to Madagascar.
I've been to Madagascar.
I/not see/him since last Monday.
I haven't seen him since last Friday.
you/ever/call/for an ambulance.
Have you ever called for an ambulance?
lose
lost
They/read/HOBBIT/twice.
They've read Hobbit twice.
I/not see/Sarah lately.
I haven't seen Sarah lately.
Have/ever/be/to San Francisco
Have you ever been to San Francisco?
break
broken
They/be/marry/for/fifty years.
They've been married for fifty years
I/not do/too many stupid things in my life.
I haven't done too many stupid things in my life.
how long/he/be/a teacher?
How long has he been a teacher?
grow
grown
I/know/you/ for 15 years
I've known you for 15 years
He/not be/unemployed/ since he left school.
He has not been unemployed since he left school.
Have/you/see/ John?
Have you seen John?
find
we/be/married for 10 years.
we have been married for 10 years.
I/never/meet/his wife.
I have never met his wife
Have/ever/see/ghost
Have you ever seen a ghost?