What did mercuito say to Tybalt in seen 3 act 1 Tybalt?

Mercutio doesn't actually speak to Tybalt in Act 1, Scene 3 of Romeo and Juliet. It's actually Romeo who tries to intervene and calm the situation.

Here's the breakdown:

* Tybalt provokes Romeo: Tybalt is furious that Romeo is at the Capulet party. He calls Romeo a villain and challenges him to a duel.

* Romeo tries to reason with Tybalt: Romeo tries to avoid a fight, emphasizing that he doesn't want to fight with Tybalt or insult his family.

* Mercutio steps in and fights Tybalt: Mercutio, enraged by Tybalt's aggression, steps in and challenges Tybalt to a duel.

* Tybalt kills Mercutio: Tybalt kills Mercutio in the fight.

So, Mercutio never speaks to Tybalt in Act 1, Scene 3. He only talks to Romeo and tries to get him to fight Tybalt. It's Romeo who refuses to fight, and that leads to Mercutio's tragic death.