Hello! Here are some sentences with the use of Singular and Plural nouns. Also, before the sentence, I will also indicate the noun used in the sentence.Singular Nouns:1. CatThe cat climbed up the tree.2. SchoolEveryday, I go to school to learn.3. PencilThe pencil is colored in yellow.4. OnionMy mom placed the onion on the table.5. TeacherThe teacher is very smart.Plural Nouns:1. CatsThere are many different breeds of cats.2. SchoolsThere are many schools to choose from.3. PencilsI have a set of colored pencils.4. OnionsIn the market, there are red and white onions being sold.5. TeachersI have 8 teachers all in all.Hope it helps...