Positive FormSubject + [USED TO + Infinitive] + Complement- My wife USED TO PLAY volleyball.Negative FormSubject + [didn’t USE TO + Infinitive] + Complement- Peter didn’t use to drink whiskey.Question FormQuestion Word + [did + Subject + USE TO + Infinitive] + Complement- What sport did Maria use to practice?- How much money did you use to spend at the casino?- Did Juan use to play the violin?