Contractions are forms like isn’t and wouldn’t. They are common in informal speech and writing. Here is a list of the contracted forms used in English.

Contraction              Meaning

I’m                              I am

I’ve                              I have

I’ll                               I will

I’d                               I had / I would

You’re                         you are

You’ve                        you have

You’ll                          you will

You’d                          you had / you would

He’s                             he is / he has

He’ll                            he will

He’d                            he had / he would

She’s                           she is / she has

She’ll                           she will

She’d                           she had / she would

It’s                               it is / it has

It’d                              it would / it had

We’re                          we are

We’ve                          we have

We’ll                           we will

We’d                           we had / we would

They’re                       they are

They’ve                      they have

They’ll                        they will

They’d                        they had / would

Aren’t                         are not

Can’t                           cannot

Couldn’t                     could not

Daren’t                       dare not

Didn’t                         did not

Doesn’t                      does not

Don’t                          do not

Hadn’t                        had not

Hasn’t                         has not

Haven’t                      have not

Isn’t                            is not

Mightn’t                    might not

Mustn’t                     must not

Needn’t                     need not

Oughtn’t                   ought not

Shan’t                        shall not

Shouldn’t                  should not

Wasn’t                       was not

Weren’t                     were not

Won’t                         will not

Wouldn’t                  would not

There’s                      there is

There’re                    there are

How’s                        how is

How’re                      how are

What’s                       what is