(IN THE PAST) [verb] [+ to infinitive] - used to show that a particular thing always happened or was true in the past, esp. if it no longer happens or is no longer trueAunt Betty used to live in Australia.You used to be able to walk around the town at night without fear of being mugged.She used to like cats but one attacked her and she doesn't anymore.You don't come and see me like you used (to).(not standard) He did used to work there, didn't he?USAGE: Used to only has the past simple tense.'Used to' can form negatives and questions in the same way as modal auxiliary verbs.When we were younger we used not to be allowed to drink coffee.Used he/Didn't he use to read the news on television?(formal) Used you to work in banking?
USED
Meaning of USED in English
Cambridge English vocab. Кембриджский английский словарь. 2012