The verbs do and does are auxiliary verbs used to form a question or a negative sentence.
She looks happy. She doesn’t look happy.
These swings don’t have any children on them.
The picnic table doesn’t have any people sitting at it.
Andrew and Kate know many people in Austin, Texas. They don’t know many people in Minneapolis, Minnesota.
Do you know anyone in Austin or Minneapolis?
Where do reeds grow? – Reeds grow in wet areas.
to be (am, is, are, was, were, will be, been, being) is used with certain tenses:
Later on today, my uncle will be taking me for a ride in his old-fashioned car. He has been restoring it since he bought it twelve years ago. We will be riding with the top down, so that we can feel the warmth of the air and smell the scents of the flowers, marshes, fields and forests we pass. I love riding in that old buggy!