The types of frequency adverbs
0% never
10% seldom
80% normally/generally
5%hardly ever / rarely
100% always
30% occasionally
90% usually
50% sometimes
70% often/frequently
I always go to bed before 11 p.m.
I usually have cereal for breakfast.
I normally go to the gym.
I often surf the internet.
I sometimes forget my wife's birthday.
I occasionally eat junk food.
I seldom read the newspaper.
I hardly ever drink alcohol.
I never swim in the sea.
The position of the adverb in a sentence
An adverb of frequency goes after the verb To Be.
When we use an auxiliary verb (have, will, must, might, could, would, can, etc.), the adverb is placed between the auxiliary and the main verb. This is also true for to be.
An adverb of frequency goes before a main verb (except with To Be).
Subject+ adverb+main verb
Subject+to be+adverb
Subject++auxiliary+adverb+main verb