TO BE

I am = I'm
You are = You're
He / She / It is = He's / She's / It's
We / You are = We're / You're
They are = They're
Is not = Isn't
Are not = Aren't
Was not = Wasn't
Were not = Weren't

TO HAVE

I have = I've
You have = You've
He / She / It has = He's / She's / It's
We / You have = We've / You've
They have = They've
Have not = Haven't
Has not = Hasn't
I had = I'd
Had not = Hadn't

MODAL VERBS

Can not = Can't
Could not = Couldn't
I would = I'd
I will = I'll
Will not = Won't
Is not = Isn't
Might not = Might't
Must not = Mustn't

FORMAS Wh

What is / has = What's
What are = What're
Where is / has = Where's
What is / has = What's
Who would / had = Who'd
Who is = Who's
Who are = Who're
What have = Who've