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/call/for an ambulance.
Have you called for an ambulance?
It/rain/a lot/today
It has rained a lot today.
go
gone
They/read/HOBBIT/twice.
They've read Hobbit twice.
I/not see/much of Sarah lately.
I haven't seen much of Sarah lately.
Have/ever/be/San Francisco
Have you ever been to San Francisco?
you/ever/see/a ghost?
Have you ever seen a ghost?
come
come
They/live/here/for/fifty years.
They've lived here for fifty years
I/not do/the cleaning/yet.
I haven't done the cleaning yet.
how long/he/be/a teacher?
How long has he been a teacher?
We/just/get back/from/our holidays
We have just got back from our holidays.
write
written
I/know/you/ 15 years, but/I/never/hear/you/speak/like that/before
I've known you for 15 years, but I've never heard you speak like that before.
He/not/leave/the house/yet.
He hasn't left the house yet.
he/watch/this film?
Has he watched this film?
You/finish/your homework/yet?
Have you finished your homework yet?
see
seen
She/just/finish/this/difficult task
She has just finished this difficult task
I/never/meet/them/before.
I have never met them before.
Have/ever/see/ghost
Have you ever seen a ghost?
I/never/visit/China
I have never visited China.