The commonest adverbials of frequency are:
We usually put adverbials of frequency in front of the main verb:
We often spend Christmas with friends.
I have never enjoyed myself so much.
but they usually come after the verb be:
He was always tired in the evening.
We are never late for work.
We use the adverbial a lot to mean often or frequently. It comes at the end of the clause:
We go to the cinema a lot.
but before another time adverbial:
We go to the cinema a lot at the weekend.
We use much with a negative to mean not often:
We don’t go out much. (= We don’t go out often)
We use how often or ever to ask questions about frequency. How often comes at the beginning of the clause:
How often do you go to the cinema?
How often have you been here?
ever comes before the main verb:
Do you ever go to the cinema at the weekend?
Have you ever been there?
Longer frequency phrases, like every year or three times a day usually come at the end of the clause:
I have an English lesson twice a week.
She goes to see her mother every day.