The verb ir (conjugation) means "to go". This verb is irregular in the present tense.

Yo voy contigo.
      I am going with you.

¿Adónde va Juan?
      Where is Juan going?

Whenever you say that something or someone is “going to”, you have to add the Spanish preposition “a,” which means “to.” We use the formula: conjugation of "ir" + a

Tú vas al mercado.
      You are going to the market.

Va a hacer frío.
      It's going to be cold.

Vamos a la playa.
      We are going to the beach.

Los muchachos van a ir al partido de fútbol.
      The boys are going to go to the soccer game.