Every day I provide my son with a couple 2-4 sentences and I ask him to correct them.
You can do this in your homeschooling notebook, with chalk on the floor, or on a board.
Here are a few examples,
Amy haz many stickers. (has)
She keps them in a big book. (keeps)
The stickers ar very pretty. (are)
Max the chalk uses. (uses the chalk.)
He a dog draws. (draws a dog.)
The dog is beig. (big)
jake has a new book. (Jake)
It IS about birds (is, .)