Adverbial phrase's of frequency are groups of words which always go together.
They describe how often something happens. There are two types. Adverbs of definite frequencyand Adverbs of indefinite frequency.
Adverbs of definite frequency
Adverbial phrases of frequency describe how often something happens.
Every morning, every afternoon
every day – daily
every week – weekly
every month – monthly
every year – annualy/ yearly
all the time
Adverbs of frequency often go in present simple sentences.
You can find them at the end of sentences.
-I have toast for breakfast every day.
-We visit our grandparents twice a month.
Adverbs of indefinite frequency
Adverbs of indefinite frequencymostly go in the middle position in the sentence.
They go before the main verb (except with the verb 'to be').
-We usually go the shops on Saturday.
-She is always late.
Occasionally, sometimes, often, frequently, and usuallycan also go at the beginning or the end of the sentence.
-Sometimesthe come and stay with us.
-I play tennis occassionally.