They (to play) footbаll. все временный формы к этому предложению + вопросы в pr. simpl и в past simpl.

They play football - Pr Simple
They played football - Past Simple

Do they play football?
Did they play football?
They play football, don't they?
They played football, didn't they?
Who play football?
Who played football?
Did they play football or golf?
Do they play football or golf?
What did they play?
What do they play?

They are playing football
they played football
are they playing football?
did they play football?
what did they play?
who played football?