He visits his grandparents once in every 2-3 years.
vs
He visits his grandparents once every 2-3 years .
vs
He visits his grandparents every 2-3 years.
What's the difference between the three of the above sentences? Which one is more natural?
English Language Learners Stack Exchange is a question and answer site for speakers of other languages learning English. It only takes a minute to sign up.
Sign up to join this communityLet's review them in the reverse order.
He visits his grandparents every 2-3 years.
Quite idiomatic. Sounds good.
He visits his grandparents once every 2-3 years .
This is alright. Compared to the first sentence it seems to be emphasizing the infrequency of the visits. Only "once" every 3 years. Not very often.
He visits his grandparents once in every 2-3 years.
Not really a correct expression.