Adverbs of frequency :

With the present simple, we often use adverbs of frequency to say 'how often' we do something. Here's a list of common adverbs:

Always

frequently

generally

hardly ever

infrequently

never

normally

occasionally

often

rarely

regularly

seldom

sometimes

usually

We usually put these adverbs in the middle of the sentence, between the subject and the verb:

I often go to the cinema.

She sometimes visits me at home.

We usually drink coffee.

We can also put them at the very beginning or end of the sentence. This makes them stronger:

Often I go to the cinema.

I go to the cinema often.

But never: I go often to the cinema.

Here are some other expressions we can use to say 'how often'. All of these longer phrases go at the beginning or the end of the sentence but not in the middle.

once in a while: I go to the cinema once in a while.

every now and again: She drinks milk every now and again.

from time to time: From time to time I visit my mother.

To say how often something happens, you can use a number or 'several' or 'many', followed by 'times'.( If the number is one, use 'once' instead of 'one time'. If the number is two use 'twice,' instead of 'two times') Then add 'a' and a period of time:

I go to the cinema twice a week.

She takes these tablets three times a day.

I change the sheets once a fortnight (fortnight = two weeks).

I meet him several times a year.

I visit my parents once a month.

We can also use 'every' + period of time:

every morning

every day

every Tuesday

every week

every month

A day of the week with 's' at the end (for example 'on Tuesdays') means the same as 'every Tuesday':

I take a piano  class on Wednesdays.

I relax on Saturdays.