Verb are the words which describes the state of being or expresses an action. Further the verb forms the main part of the predicate by describing an action or occurence.
Subject in a sentence refers to the doer of the action or any place or thing that is being something. If verb is found in the sentence so the subject can be found in the sentence.
you could do Harriet Tubman. search her up on Wikipedia and it'll tell you everything you need to know. Go to multiple websites on facts and things that have to do with her