We use the word has to tell about one person, place, or thing.
The girl has a red hat.
The penguin has a friend.
The park in my community has many trees.
We use the word have to tell about more than one person, place, or thing.
Use have with the words you and I.
I have a red hat.
You have many friends.
The parks in my community have many trees.
We use the word had to tell about the past.
The bear had a red hat.
The penguin had friends.
The parks in my community had many trees.