Does an adverb of frequency always have to be between the noun and verb?

Question

For example take this sentence:

If it's summer, then I sometimes like going to the beach.

But would this also be correct:

If it's summer, then sometimes I like going to the beach.

Answer 1

Sometimes is a odd adverb of frequency because it does not follow the standard placement rules which many of the others do (always, regularly, never etc). It can be placed at the beginning, end or in either of the positions you have highlighted in your example. The placement can add emphasis to your sentence.

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