In addition in a Sentence, Definition and Example Sentences We use “In addition or additionally” between two sentences. We use “In addition to” followed by a noun / pronoun or V ing. Example Sentences I cannot come with you, I have to go to work. In addition, there is someone I need to see at 2 p.m., sorry. You are really sad right now. In addition, the people around you frustrated you. Do not have a decision right now, please. She is saying she is going to take us, in addition to all the things she has done.