One of the functions of this expression is to talk about repeated actions in the past which we don't do in the present.
Talking about Habits
Habits are things that we do regularly, from the past to the present time. Sometimes we can use some modals and semi-modals to refer to habits.
Semi-modals are the subcategory of modal verbs. So it is good to learn the difference between modal verbs and semi-modal verbs to use them properly.
download langeek app for free