Affirmative Sentences in English Grammar - ThoughtCo
www.thoughtco.com › affirmative-sentence-grammarJun 08, 2020 · By extension, in English grammar, an affirmative statement is any sentence or declaration that is positive. An affirmative statement can also be referred to as an assertive sentence or affirmative proposition: "Birds fly," "Rabbits run," and "Fish swim" are all affirmative sentences where the subjects are actively doing something, thereby making a positive statement about the noun in motion.