| �used to�  is used: 1. To express a discontinued
  habit or a past situation which contrasts with the present. a.    
  I used to smoke cigarettes; now I smoke a pipe. b.     He used to
  drink strong black coffee; now he drinks tea. c.     I used to
  study in a middle school; now I study in a secondary school. �used to� is not normally stressed, but it can be stressed if the speaker wishes to emphasize the contrast between past and present. 2. To express a past
  routine or pattern. Here we are
  not making a contrast between past
  and present; we are merely describing someone �s routine during a certain
  period. Very often there is a succession of actions, used to here is
  replaceable by would (but would cannot replace used to for a discontinued habit etc.
  as in 1 above), used to here is
  always unstressed. Tom and Ann were husband and
  wife. Every morning Tom used to kiss Ann and set off for work. Ann used to
  stand at the window and wave goodbye. In the evening she used to welcome him
  home and ask him to tell her about his day. If we use would we have:
  ==> Every morning Tom would kiss Ann
  and set off for work. Ann would stand at the window and wave goodbye etc.Cheers! Al.
 
 |