Yo quiero vivir contigo was created in 1960.
"Quieres vivir" = you (informal) want to live "Usted quiere vivir" = you (formal) want to live "(Yo) quiero vivir" = I want to live ('Yo' can be omitted if so wished)
In the sentence "Pancho y yo vivir en la universidad," you should use "vivimos" because the subject "Pancho y yo" is plural. Therefore, the correct conjugation of "vivir" is "vivimos" to match the plural subject.
(Yo) no puedo vivir sin Tí
There are no main "yo" verbs in Spanish. Like if you said "yo voy" it means i go. or if you said "yo juego" it means to play. All Spanish verbs have a yo form which means your saying you are doing something. there are no main yo verbs.
In Pancho y yo ______ en la universidad, The action of the sentence concerns "yo" and another person, Pancho. That could be replaced by "WE live in the universtiy." The WE form is the first person plural, or vivimos.
vive
I can't live in a world where you don't exist.
(Yo) vivo en una granja. The "yo" is optional-- it means "I", but we can already tell that the speaker is talking about him/herself because of the conjugation of "Vivir" as "Vivo".
And I want to live all my life with you.
the "yo" form of tocar is toco
To conjugate the verb "vivir" (to live) in Spanish: Yo vivo (I live) Tú vives (You live) Él/ella vive (He/she lives) Nosotros/as vivimos (We live) Vosotros/as vivís (You all live) Ellos/as viven (They live)