1. Patricia va a leer el periódico en los ratos libres
Va is the conjugation of the verb ir that matches the third person singular in the simple present
2. Jorge va a visitar monumentos en el centro
This sentence also stands for the third person singular in the simple present.
3. Yo voy a jugar videojuegos el fin de semana
Voy is the conjugation of the verb ir that matches the first person singular in the simple present
4. Nosotros vamos a nadar en el gimnasio
Vamos is the conjugation of the verb ir that matches the first person plural in the simple present
5. Lola y Daniel van a ir al parque
Van is the conjugation of the verb ir that matches the third person plural in the simple present