Spanish language Q&A Forum

I use the app SpanishDict to help me check myself on certain concepts, especially on conjugations. For this concept, the gerund, the app uses past and present participles. Frankly, I did not receive a whole hell of a lot of instruction when it came to the difference between a participle and a gerund when I was younger but hey, I turned out ok! I have gotten the gist but the two things don't do the same thing  in Spanish as they do in English. I asked a Spanish professor friend of mine about this and he said one of them  (I can't remember which) was the gerund and the other is the participle. Is he correct? I got a questions wrong because I typed one form but it was actually the other. Also, is SpanishDict throwing me off?  

When is de used after faltar?

I've read it's mostly a formal construction?

here it says ¨Nosotros no deberíamos haberlo escuchado.¨ Should it be  Nosotros no deberíamos haberle escuchado? Le instead of Lo?

The recorded voice says "Me gusta vino blanco"  it leaves out " el vino"

"a pesar de que" is not wrong. I think your system should be fixed.

-r
 

I know that letters in Spanish are feminine, but I notice in this reading that the acronym DNI is proceeded by a masculine article.  Is that because the word "documento" is masculine?  Or are all acronyms masculine in Spanish?

"Yo visité unos cuarentas países cuando era joven" (taken from a test, correct answer), pero "unos ochenta minutos". 

I would have expected that "unos cuarenta países" is correct. Why isn't it?

Que son otras comidas y bebidas tipicas de paragauy?