What are subject pronouns? Pronouns replace nouns in sentences. Subject pronouns are pronouns that replace nouns that are doing the action in a sentence. For example, Jack runs can become he runs. Subject pronouns usually come at the beginning of sentences, but as we learn about more complex sentences, we will find subject pronouns in different places. Here is a list of subject pronouns. I you he she they we it Here is a video to help your students understand subject pronouns. Subject Pronouns –