Spanish language Q&A Forum

Un bolígrafo también es una pluma. Si?

Is there any problem with adding "se" to the verb "reír" here? 

This is a quote from kwiziq that is supposed to be explanatory, but it does not suggest a rule to know which adjectives have this form of ending. How are we to know which adjectives have this irregularity? Why can they not just follow the regular formula?

Why was "partido" (for "game") the correct usage in the first part of the last sentence, but then "juego" (for "game") was correct in the latter part of that same sentence?

Pati Ecuamiga

This lesson is a little confusing because under "Examples and Resources", el Preterito Perfecto is shown, after being told above that el Preterito Indefinido is preferred in Latam.  

Hola. Solo para que sepan... 

Esta pregunta apareció en el Quiz. Mi cuenta tiene la versión latinoamerica activada, y normalmente no vemos preguntas sobre conjugaciones de vosotros porque no la usamos. 

Es probable que ________ en el intento.It's possible that you'll die trying.(HINT: Using the "vosotros" form, conjugate "morir" in El Presente de Subjuntivo.)

This goes against everything else I have learned or am learning in the classroom  - I cannot remember two sets of rules.  Any correct answer should be marked as correct, whether the so-called Latin American version or  Spanish version.   There doesn't need to be only 1 correct answer.

My neighbours enjoy playing music really loudly.

"with verbs like gustar"
https://spanish.kwiziq.com/learn/theme/707648

Nowhere in there does it list "divertir"
I'm unclear on why it wasn't divierten like it would have been "disfrutan"

Why do we say "ciento por ciento"? Ciento is more than one hundred so shouldn't it only be cien por ciento and cien por cien?