Form and rules
How it works
Common frequency adverbs include always, usually, often, sometimes, rarely/seldom, and never.
Put frequency adverbs before most main verbs: I usually walk. She never eats meat.
Put frequency adverbs after be: He is always tired. They are often busy.
Sometimes can also go at the beginning or end of a sentence: Sometimes I cook. I cook at home sometimes.
Never already has a negative meaning, so do not normally use don't/doesn't with never: I never smoke.