When quedarse follows one of the useful verbs, the little word attaches to the end of the "to" form, or goes before the changed verb. It has to match the person doing the staying.
Either position works: debemos quedarnos or nos debemos quedar.
Tienes que quedarte aquí · No puedo quedarme esta noche · Podemos quedarnos · No podemos quedarnos esta noche · ¿Piensas quedarte aquí esta noche?
With the haber past there is no "to" form to attach to, so the little word must go before the changed verb.
me he quedado (I have stayed)
Nos hemos quedado · No nos hemos quedado · Te has quedado · ¿Te has quedado? · ¿Tú te has quedado? · ¿Tú no te has quedado?
And on getting it wrong: place it with logic rather than by what feels good. If you are wrong through a fault of logic, that mistake changes the logic, which is the point.
You have had debo and puedo for a while. Here are their "to" forms, so you can build the rest.
The o in poder splits when you stress it, giving puedo, but not in podemos.
Llamar is to call or to phone. Rather than saying my name is, Spanish much more commonly says I call myself.
¿Cómo te llamas? (what is your name?)
You may have heard that phrase without knowing how it was built. It is literally how do you call yourself?
The ll is pronounced like a y in most of the Spanish-speaking world.
The hook is September, which in Spanish is septiembre or setiembre, both versions existing. You can see siete in that set- with the e split.
Voy a quedarme hasta las siete
The long sentence in this track is built the same way as all the others: take the first piece, say it, forget it, move on.
quiero saber · por qué · tienes que quedarte aquí
Quiero saber por qué tienes que quedarte aquí.