J. K. Rowling may writes a new Harry Potter book.
Wrong (J. K. Rowling may WRITE...)
The test could be very difficult.
Correct
Juana may teaches English next year.
Wrong (Juana may teach...)
Minecraft could be the number one game next month.
Correct
Bring your umbrella, it might rain later.
Correct
Julia might calls her friend tonight.
Wrong (Julia might CALL her friend...)
Lucas might will play Fortnite on Friday.
Wrong. (Lucas might PLAY...)
She could visiting her grandparents.
Wrong (She could VISIT...)
The students could visiting the museum next week.
Wrong (The students could VISIT...)
He might goes to London this weekend.
Wrong (He might GO to London...)
Jason might read that book. It looks interesting.
Correct
I might be an actress in the future.
Correct
Karen don't may come to the party.
Wrong (Karen MIGHT NOT come...)