The correct way of using the Modal auxiliary verb 'USED TO'Many people who are even experts in English do not use the modal auxiliary very "Used to' in a correct way.
Used to ... is used when we refer to a discontinued action which were doing regularly in the past but have stopped doing it now. For example: I used to play cricket two years ago. I used to read clearly with out glasses before but now I wear glasses.
If we want to refer to actions which we do regularly nowadays we use the simple present tense as follows:
The doctor is available at his clinic from 9.00 to 11.00 Am every Friday. But he used to visit his clinic only between 9.00 to 10.00 Am last month.
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