parle

In a sentence

• Je parle français tous les jours.

  I speak French every day.

  Here, 'parle' is used to indicate the first-person singular (I speak) in the present tense.

• Il parle de ses vacances avec enthousiasme.

  He talks about his holiday with enthusiasm.

  In this sentence, 'parle' is used for the third-person singular (He talks) in the present tense, referring to the topic of a conversation.

• Pourquoi parles-tu si vite ?

  Why do you speak so fast?

  Here, 'parles' (a variation of 'parle') is addressing the second-person singular informal (you speak) in the present tense, indicated by the inversion question form in French.