It depends on who is going. They are going to is "ellos van a...". We are going to is "Vamos a...". You are going is "Vosotros vais a..." or "Usted van a".
To say 'I am going to rest' in Spanish, you would say 'Voy a descansar.'
To say 'I am going to read' in Spanish, you would say 'Voy a leer.'
To say 'I am going to run' in Spanish, you would say "Voy a correr.'
To say 'I am going to school' in Spanish, you would say 'Voy a la escuela.'
To say 'I am going to school' in Spanish, you would say 'Voy a la escuela.'
To say 'I am going to the room' in Spanish, you would say "Voy al cuarto.'
To say 'I am going to talk' you would say 'Voy a hablar.'
voy
Yendo
To say 'He is going to the bathroom' you would say 'Va al baño.'
You can say "Vas a perder."
voy a cantar