We usually have three classes a day. Задать все виды вопросов к этому предложению.

We usually have three classes a day, don't we? Разделительный

Do we (you) usually have three classes a day? Общий

Who usually has three classes a day? Вопрос к подлежащему

How often do we (you) have three classes a day? Специальный

Do we (you) have three or four classes a day? Альтернативный