When we talk about things we do regularly, but not at the moment we are speaking, we use present simple.
I play football once a week
He runs before work.
‘Have’, ‘do’ and ‘go’ are irregular if we use ‘he’, ‘she’ or ‘it.’
He has 2 cats.
She does an art class with her freinds.
My dad goes to the shops once a week.
When asking questions, use do or does.
Do you like chocolate?
Does he play tennis?
For the negative, we use don’t + verb or doesn’t + verb.
We don’t do that.
The cat doesn’t like the dog.