Pronombres y determinantes - Pronombres personales de sujeto

(subjective first-person singular pronoun) used by the speaker to refer to themselves when they are the subject of the sentence

yo

(second-person pronoun) used for referring to the one or the people we are writing or talking to

tú

(subjective third-person singular pronoun) used when referring to a male human or animal that was already mentioned or one that is easy to identify

Él

(subjective third-person singular pronoun) used when referring to a female human or animal that was already mentioned or one that is easy to identify

Ella

(subjective third-person singular pronoun) used when referring to something or an animal as the subject of a sentence

ello

(subjective first-person plural pronoun) used by a speaker when they want to talk or write about themselves and at least one other person

nosotros

(subjective third-person plural pronoun) used when referring to the things or people that were already mentioned

Ellos