This is a regular verb. It follows the conjugation pattern of the verb vivir.
PresentPresente
Muchos estudiantes asisten a esta clase.
Many students attend this class.
PreteritePretérito indefinido
Asistí a la boda de mi prima.
I attended my cousin's wedding.
ConditionalCondicional
¿Asistirías a la reunión en mi lugar?
Would you attend the meeting in my place?
FutureFuturo
El presidente asistirá a la reunión.
The president will attend the meeting.