We're going later = Vamos mas tarde
(We) were going later = Ibamos mas tarde
(You/They) were going later = Iban mas tarde
Después de clases
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.'
Later in Spanish can either be "Luego" or "Más tarde".
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.'
Nado mas tarde. Literally "I swim later", but in Spanish it is very acceptable to use the present tense to speak of future events. You could also say "Voy a nadar mas tarde", meaning "I am going to swim later." Finally, you could say "Nadaré mas tarde" , or "I will swim later." But.....Spanish does not really have a future progressive. So you should not say something like "Nadando mas tarde", which literally would be "swimming later."
To say 'I am going to talk' you would say 'Voy a hablar.'
voy
Yendo