see -
seen
She/be/Africa.
She's/She has been to Africa.
They/make/a mistake.
They haven't/have not made a mistake.
you/ever/call/for an ambulance
Have you ever called for an ambulance?
we/ride/a bike
We have ridden a bike.
They/read/The Hobbit/twice.
They've/They have read The Hobbit twice.
I/buy/anything.
I haven't/have not bought anything.
they/ever/find/any money
Have they ever found any money?
our team/become/the best
Our team has become the best.
He/see/the Great Lakes
He's/He has seen The Great Lakes.
He/cut/his hair/yet
He hasn't/has not cut his hair yet.
how long/he/be/a teacher?
How long has he been a teacher?
The family has lost the game.
We/watch/the film/already
We've/We have already watched the film.
Our mom/find/the keys/yet
Our mom hasn't/has not found the keys yet.
How long/they/live/here
How long have they lived here?
they/hear/the news
They have heard the news.
It/go/with/the wind.
It's/It has gone with the wind.
The dog/eat/the bone.
The dog hasn't/has not eaten the bone.
she/be/here/before
Has she been here before?
our class/forget/the homework
Our class has forgotten the homework.