i think it is a or e because i had the same question and i just clicked a and i got it right but if not sorry
I'm just going to give you a conjugation table for you reference.
-ir verbs
yo -o instead of -ir
tú -es instead of -ir
él, ella, usted -e instead of -ir
nosotros/as -imos instead of -ir
vosotros (spain) -ís instead of -ir
ellos, ellas, ustedes -en instead of -ir
-ar verbs
yo -o instead of -ar
tú -as instead of -ar
él, ella, usted -a instead of -ar
nosotros/as -amos instead of -ar
vosotros (spain) -aís instead of -ar
ellos, ellas, ustedes -an instead of -ar
-er verbs
yo -o instead of -er
tú -es instead of -er
él, ella, usted -e instead of -er
nosotros/as -emos instead of -er
vosotros (spain) -éís instead of -er
ellos, ellas, ustedes -en instead of -ar
conjugate the verb based on the subject
hint: the subjects for the two and three are: Me (yo) & Alfredo(él) have fun.
