parla

In a sentence

• Lei parla italiano fluentemente.

  She speaks Italian fluently.

  Here, 'parla' is the third person singular present tense of 'parlare', used to indicate a habitual action performed by 'lei' (she).

• Mi piace quando lui parla piano.

  I like it when he speaks slowly.

  In this sentence, 'parla' again is the third person singular present tense of 'parlare', describing an action done by 'lui' (he) in a specific way.

• Chi parla durante la lezione viene ripreso dall'insegnante.

  Whoever speaks during the lesson gets reprimanded by the teacher.

  Here, 'parla' is used in a present general statement showing an action performed typically and universally during class sessions.