Je parle.
English: I speak.
Subject pronouns in French are words like 'je', 'tu', 'il', etc., that replace the subject (the person or thing doing the action) in a sentence.
Use French subject pronouns to talk about who is doing the action in a sentence. Every verb needs a subject pronoun in French, even if it seems obvious.
Je parle.
English: I speak.
Tu chantes.
English: You sing.
Il mange une pomme.
English: He eats an apple.
Nous habitons à Paris.
English: We live in Paris.
Elles jouent au football.
English: They (feminine) play soccer.