Has and have в чём различие?

We use have in all the persons singular and plural except the third person singular. In the third person singular we use has.

I have a book. She has a book.

We have some sweets. He has some sweets.

They have a beautiful house. Tom has a small house.

You have seven lessons today. She has five lessons today.

He has a lot of works to do. You have many letters.

Mary has a dress. Jan has a hat.

Mary and Jane have dresses and hats.

Tom has a dog. Jim has a cat. Tom and Jim have got pets.

My dog has a short tail.