Answer:
see below
Step-by-step explanation:
There are 3 endings in spanish:
-ar, -er, and -ir
For the -ar ending, there are 6 conjugations for preterite tense:
yo: -é
tu: -aste
el/ella/usted: -ó
nosotros: -amos
vosotros: -asteis
ellos/ellas/ustedes: -aron
For the -er and -ir ending, there are also 6 conjugations for preterite tense:
yo: -í
tu: -iste
el/ella/usted: -ió
nosotros: -imos
vosotros: -isteis
ellos/ellas/ustedes: -ieron
See attached image for more information, hope this helps! :)