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/fall/in front of a lot of people
Have you ever fallen in front of a lot of people?
Drink
drank
They/read/The Hobbit/twice.
They've read Hobbit twice.
I/not watch/my favorite/series/lately.
I haven't watched my favourite series lately.
Have/ever/be/San Francisco
Have you ever been to San Francisco?
know
knew
They/already/watch/ this film
They've already watched this film
I'm hungry. I/ eat/ lunch/yet.
I'm hungry. I haven't had lunch yet.
You/take/ your medicine/yet?
Have you taken your medicine yet?
slept
I/homework/do/maths/already
I've already done my maths homework.
I/finish/my homework/yet
I haven't finished my homework yet
How long/she/study/there
How long has she studied there?
forgot
forgotten
Neil is so clever! He/ learn/ Spanish/ Chinese/ French/ and/already
Neil is so clever! He has already learned Spanish, Chinese and French.
I/have/a pony as a gift
I have never had a pony as a gift
Have/ever/see/ghost
Have you ever seen a ghost?