so on verbs, singular ends in (o) and plural or ending in s ends in (a)? despite who you are talking to?
The verb is conjugated according to the person, it does not matter if it's a man or woman. The ending depends on the verb. Normally, not a rule, eu (I) ends in -o. Eu amo, falo, bebo, corro (in present tense), 3rd singular is -a / -e. Ele ama, fala, bebe corre. 1st pl in -os. Nós amamos, falamos bebemos, corremos. 3rd plural -am/-em. Eles amam, falam, bebem, correm. But there are also irregular verbs and other times to conjugate them :)