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.