The given sentence: He sometimes comes here. In this sentence, there is an adverb of frequency 'sometimes'. When frequency appears in the sentence we can either use the same word in the question or we can use 'often' to ask the question.
Affirmative:
He sometimes comes here.
Interrogative:
How often does he come here?
Does he sometimes come here?
When using adverbs of frequency in the question form, put the adverb before the main verb.
auxiliary verb / subject / adverb / main verb / predicate
- Do you often go to the cinema?
- Did he sometimes leave the classroom?
- Do they usually come late to class?
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