Cuál + ser

Question

I would add one other usage that took me by surprise when my Mexican students first corrected me, which is to use “cuál” with the verb “ser”.  “Cuál es tu restaurante favorito?” “Cuáles son los mejores restaurantes por aquí?”

Silvia Piriz · Accepted Answer

Hola Marcos R.
Great point, you’re absolutely right. The usage you’re describing (cuál with ser, e.g. ¿Cuál es tu restaurante favorito? / ¿Cuáles son los mejores restaurantes…?) is a very common and important pattern.
We actually do cover this specifically in a dedicated lesson that explains how to use cuál/cuáles as interrogative pronouns followed by verbs like ser. I’d recommend taking a look at that lesson, as it goes into this distinction in more detail with examples.
Thanks for highlighting it, it’s a really useful nuance for learners to notice.
Feliz martes
Silvia

Luke thebeast · Answer

Yeah and I found out you can use it like this too!¿Cual de vosotras lo hizo?¿Cuales de estos coches te gusta mas?favoritopreferidonoted