debisteis
-you owed
The word debisteis is the preterite form of deber in the second person plural.
See the full deber conjugation

deber

Muchachos, no debisteis hacerlo.
Oh, boys, you shouldn't have done it.
No debisteis venir. ¿Qué dices?
You should never have come here. What?
¡No debisteis haber venido!
You shouldn't have come!
¿El qué no debisteis?
You shouldn't have, what?
Ayer, el 1 dde enero de 2003, debisteis ver a los antiguos estudiantes de la Universidad Sri Sathya Sai. Había cerca de 500 ex-estudiantes reunidos aquí, quienes ofrecieron un programa de música ayer por la tarde.
Yesterday, the 1st of January 2003, you must have seen the old students of Sri Sathya Sai University. There were about 500 of them assembled here, who presented a music program last evening.
Debisteis pensar eso antes de empezar.
You should have thought of that before you started.
Debisteis haber hablado de algo, ¿no?
You must have talked about something, right?
Debisteis decirle que no lo hiciera.
You could've told him not to do it.
Debisteis hablar de algo.
You must have talked about something.
Debisteis hacerlo hace años.
You should have done it ages ago.
Debisteis usar acónito amarillo.
Should've used the yellow wolfsbane.
¡Debisteis tener más cuidado!
You weren't vigilant enough!
Debisteis decirle que no lo hiciera.
You could've told him not to do it. What kind of friends are you?
No debísteis haberme escuchado.
You wouldn't listen to me.
Y probablemente no debisteis hacerlo.
And you probably shouldn't have.
Want to Learn Spanish?
Spanish learning for everyone. For free.
SpanishDict Premium
Have you tried it yet? Here's what's included:
Cheat sheets
No ads
Learn offline on iOS
Fun phrasebooks
Learn Spanish faster
Support SpanishDict