Spanish language Q&A Forum

Hello.  Can you please explain why the definite article isn't used in this phrase?  Is it similar to the difference between "en casa" (at home) and "en la casa" (in the house, as in a physical location)?  Thank you!

So, is it incorrect to say - Debo comer- Is the use of deber covered in other lessons?

Thanks

Hi, is there some kind of rule with the verbs that stem change to ue or is it just a case of learning and remembering which ones do? 

Thanks :) 

Hello, I am not clear why “estaba” is used (imperfecto) but all the other verbs are in the pretérito tense. I have read all the lessons on this subject but still nearly always get the tense wrong. I think the guidance is that the pretérito is used when there is a specific beginning and end - but is that not the case with “mucha gente no estaba de acuerdo”?  Many thanks, Tony