I was taught that when takling about the past habitual actions, I should use ' used to and when talking about repeated past actions, I can use both ' used to' and ' would'. My question is to me habitual actions and repeated past actions seem to be the same. For example, I used to play a lot of games on the computer seems to indicate both habitual actions and repeated actions. So I think, I can replace 'used to ' with ' would'. But my teacher says no. How do you know if it is repeated actions and habitual actions? Another example is I used to drink coffee a lot. Is it a habitual actions or repeated action? I am very confused.