Where do we place adverbs of frequency in a sentence? 1. for sentences that contain the verb to be - 2. for sentences with one main verb - 3. for negative sentences - 4. for frequency expressions -

1. For sentences that contain the verb to be - before the verb to be.
2. For sentences with one main verb - after the main verb.
3. For negative sentences - between the auxiliary and the main verb.
4. For frequency expressions - at the end of a sentence.