Adverbs of frequency tell us how often something happens. Examples are: often, never, always, sometimes, generally, usually, seldom, rarely, ever, hardly ever, frequently etc.
Adverbs of frequency are usually placed:
Before the principal verb
Structure: subject + adverb + verb + object etc.
- I often read comics.
- I never buy thrillers.
- I sometimes read foreign periodicals.
- They frequently visit us.
- We seldom read science fiction.
- We hardly ever read books in foreign languages.
- They always buy detective stories.
After the verb be
Structure: subject + be + adverb + complement etc.
- She is always late in going to college.
- I am seldom late for work.
- He is always worried about his finances.
- We are never invited to parties.
- I am sometimes asked to speak at public meetings.
Between the auxiliary verb and the principal verb
Structure: subject + auxiliary verb + adverb + verb + object etc.
- I have often thought of writing a novel.
- I will never forget those unfortunate events.
- He could hardly ever forget that experience.
- He has always managed to hoodwink others.
- He has rarely admitted his mistakes.
- She has always done justice to all.
- We should never take such big risks.
Before used to and have to
Used to and have to are always placed after the adverbs.
- We sometimes used to visit them.
- He occasionally used to write to me.
- The fire force always has to be ready for emergencies.
Note: When the auxiliaries are to be stressed, they are sometimes put after the adverbs.
- I often am worried about my health.
- We never should waste such an opportunity.