Pronouns trip up some of the bet business writers. A pronoun is a stand-in word for a noun. For example, "he" stands in for "Jonathan:" Jonathan wanted to start the new project today. He plans to set a meeting for this afternoon." Many people have trouble matching pronouns to the nouns they replace or the sentence in which they're used (in this sentence, "they're" stands in for "pronouns," which is a plural word). One of the most common grammar mistakes in pronoun use is inco