There's a book.
There are four books.
There is a man.
There are four men.
There's a baby.
There are seven babies.
There is a tooth.
There are some teeth.
There is a tomato.
There are three tomatoes.
There's a ball.
There are five balls.
There is a box.
There are four boxes.
There is a child.
There are six children.
There is a bike.
There are six bikes.
There is a toy.
There are three toys.
There is a glass.
There are five glasses.
There is a mango.
There are mangoes.
There is a guitar.
There are seven guitars.
There is a family.
There are three families.
There is a foot.
There are six feet.
There is a singer.
There are three singers.
There is a sister.
There are two sisters.
There is a friend.
There are six friends.
There's a bag.
There are six bags.
There is a pencil.
There are ten pencils.
There is a bus.
There are two buses.