Adverb of frequency can be divided into two groups:

  1. Those with the idea of definite frequency, such as every day, annually, and twice a week.
  2. Those with the idea of indefinite frequency, such as always, rarely, and never.

Pattern to remember

  1. Definite frequency adverbs usually go at the beginning or end of the sentence or clause.

Incorrect: The manager checks every day the production levels.

Correct: The manager checks the production levels every day.

  1. Indefinite frequency adverbs come after the verb be.

Incorrect: He usually is very friendly.

Correct: He is usually very friendly.

  1. Indefinite frequency adverbs precede all other verbs, or, if the verb is preceded by an auxiliary, they go after the first auxiliary.

Incorrect: This flight leaves always on time.

Correct: This flight always leaves on time.

  1. Be aware of the subtle differences in the meaning of the various adverbs.

Incorrect: There is yet time to correct that error.

Correct: There is still time to correct that error.

  1. Certain indefinite frequency adverbs can go at the beginning or end of a sentence or clause. These include frequently, generally, occasionally, often, sometimes, and usually.

Incorrect: Always I eat lunch in the office.

Correct: Usually I eat lunch in the office.

By: Arif