Respuesta :
If we are talking about just plain old present tense, then it is -an.
Example: hablar
ustedes hablan
Example: hablar
ustedes hablan
But if your talking about -Ar verbs in Preterite tense then it's
Example: Jugar = drop the -ar and add -aron which equals Jugaron
Example: Jugar = drop the -ar and add -aron which equals Jugaron