Adverbs of frequency (like always, never, often, usually, sometimes, rarely) tell us how often something happens. In English, they usually go before the main verb, but there are some important rules depending on the verb type.
Adverbs of frequency come before the main verb (but after the subject):
If the verb is a form of to be (am, is, are, was, were), the adverb goes after the verb:
If the verb has a helper like can, will, have, put the adverb after the first helper:
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