Answer: you should get familiar with the ending changes for nouns.
for i it is yo in spanish and the words for I do something like i speak would end in o so speak in spanish is hablar you take the ar and change it o
so i speak is yo hablo
for you in spanish it's Tu the ending is as so you speaks is Tu hablas
for he/she/ and they
he = el
she = ella
they = usted
the ending for this group is habla changing ar to a so he or she or they speak i habla
we in spanish would be nosotros (no-so-trose) and that ening ends in amos so we speak would we hablamos
the next ones is he / she/ they plural.
so ellos is plural for boys or men in this situation
ellas is plural for girls or women
and Ustedes is plural for many people, like a group
so the ending for this ends in an so ellos hablan. ellas hablan, or ustedes hablan
you will more verbs with alternating endings as you progress in spanish.
I hope this miniature lesson in espanol helped adios amigo good luck!