Subject / PredicateJulie / sang
Subject / Predicate / Direct ObjectJennifer / wrote a letter.
Subject / Predicate / Indirect Object, Direct ObjectRobert / played me a song.
Adjective Subject / Predicate AdverbThe young girl / sang beautifully.
Subject / Predicate (linking verb) / Predicate NominativeDenise / is my daughter.
Subject / Predicate (linking verb) / Predicate AdjectiveSusan / seems kind.

Number refers to Singular or Plural.
Person refers to the person who is the subject of the verb:

SingularPlural
First person: the speaker or speakersIwe
Second person: the person(s) spoken toyouyou (all)
Third person: whomever or whatever is spoken abouthe, she, itthey