adverbs of frequency的用法和样例：
- Where do we usually put adverbs of frequency?
- To revise the use of adverbs of frequency and the names of common food items.
- Adverbs of frequency can appear in different positions in a sentence.
- When using adverbs of frequency in the question or negative form, put the adverb of frequency before the main verb.
- If the sentence has more than one verb (e. G. Auxiliary verb), put the adverb of frequency before the main verb.
- This paper mainly introduces the adverb of frequency "very" used with Jiaozuo dialects.