Spanish language Q&A Forum

Someone else has asked a similar question but in regards to the interchangeability of the tenses, if you were to say "You could have called me the whole evening", can you still say "Podrías/Podías haberme llamado toda la tarde" or do you have to use "Pudiste haberme llamado toda la tarde" because it is in a set time frame now?

No me gusta anotarme a mí mismo en la prueba de audición. Es una pérdida de tiempo.  Deberías eliminar esa característica.

Hello Kwiziq team, 

As always I love your content but had a query about this particular question...

I did get the correct answer to this question (picaróna); however i was wondering why it isn’t “una poca” instead of “un poco” when the friend you’re talking about is feminine (as it’s amiga not amigo). 

Here’s the question:

Tu amiga es un poco ________. Your friend is a bit mischievous.HINT: "picarón" = masculine for mischievous
Thank you in advance! Fran 

I'm failing to see why 'aquel' was marked incorrect in the test question about my parents visiting that village. The sentence doesn't state or imply any distance, so surely either aquel or ese should be acceptable.

In question #1 where it says we are and the continuing form of the verb, I used estar + continuing form of verb and it was wrong.  But in question #6, it is the same questions and I used estar + continuing form of the verb and the answer was right.  What is the difference?

I'm not sure I understand why the usage is "mensajes clave" vs. "mensajes claves"

Is clave in this context an adjective?  If so, shouldn't it agree in number with the noun?
mensajes clave vs. mensajes claves

As an example, wouldn't  "important messages" be plural? e.g. "mensajes importantes"? 
Why does "clave" stay singular when "mensajes" is plural?

I must have missed this grammar lesson on adjectives like Clave :-)