Spanish language Q&A Forum

In the lesson you give examples for estar deseando in imperfect, but not for tener ganas de. I feel pretty sure I could use tener ganas de in imperfect as well, but neither seems to fit well with preterite. 

Could you say more about how these two are used with other moods and tenses and what limitations, if any, exist.

EDIT: Sorry, I see you answered part of this in an earlier reply. However, could you indicate any other limitations that might apply. I wonder about subjunctive too.

Jugué al tenis ayer.
I played tennis yesterday.

Where does the 'al' come from here?

Thanks

Am I correct in understanding that the use of Unos/as is for countable nouns (pears, sunglasses, cellphones... etc)? For non countable nouns such as money, salt, or sugar, you would use a different word to say some?

I was wondering if there was a reply to his question below:

"didn't need to (infinitive) & needn't have (past participle) are used to express the lack of necessity in the past, ..."

Esta correcto? En la siguiente oracion, pero en vez de sino esta usado. Creo que despues de negativo  sino debe haber usado no? 

 Vuestros papeles no eran fáciles de entender, pero los nuestros sí

Your papers were not easy to understand, but ours were.

Hello,

I am under the impression that rico means rich.

So when we call food item rico, it appears to me to be rich in calories.

Or is it that we call it delicious because only rich people can have such a meal/ food item?

The kwiz question is: Cristina no sabe todavía ________ va a celebrar su cumpleaños.

The most import possibilities are dónde and donde.

If i look in the lesson: Difference between dónde and donde (with and without a written accent)

i see: if you can substitute it for "in what location", you can use dónde.

This answer was wrong, it should be donde. I don-t understand that, it seems to contradict the lesson.

dos pequenos problemas in la seccion verde asi, "And both of these categories are considered invariable indifinite pronouns, that is to say, they don't change to agree in gender or number with the noun that are substituying."

indefinite= indefinite

that are substituying  = that they are substitituting for