Contraction

Spelled out

ain’t (slang — not used in Standard English, but  common in informal speech.)

stands for am not, is not, are not, have not, has not

aren’t

are not

can’t

can not

couldn’t

could not

didn’t

did not

doesn’t

does not

don’t

do not

hasn’t

has not

haven’t

have not

he’d

he had or he would (context will provide the correct spell-out)

he’s

he is or he has (context will provide the correct spell-out)

I’d

I had or I would (context will provide the correct spell-out)

I’m

I am

isn’t

is not

it’s

it is or it has (context will provide the correct spell-out)

I’ve

I have

let’s

let us

she’d

she had or she would (context will provide the correct spell-out)

she’s

she is or she has (context will provide the correct spell-out)

shouldn’t

should not

someone’s

someone is (context will provide the correct spell-out)

they’d

they had or they would (context will provide the correct spell-out)

they’re

they are

they’ve

they have

wasn’t

was not

we’d

we had or we would (context will provide the correct spell-out)

we’re

we are

weren’t

were not

we’ve

we have

who’s

who is

won’t (irregular contraction)

will not

wouldn’t

would not

you’re

you are

you’ve

you have