Grammar Cards – Using Either… or in English Either… or is a correlative conjunction. We use either … or for connect things which are the same types, phrases, clauses or words. Example Sentences Either Mark or Samuel will go. You can either come with me now or walk home. They don’t have enough time. They can either have breakfast or have a shower. You can either call me at home or the office. He can have either tea or coffee. Mary didn’t like either Madrid or Texas. I’ll either write to you or phone you next week.