Grammar Queries (based on concepts)

Question

Bonjour Madame Cécile !I am facing a few problems and am unable to understand the reasons behind them.1. "He realizes you're cheating." -> Il réalise que vous êtes en train de tricher. In this sentence, why one doesn’t use Le Subjonctif as the expression is followed by “que”?2. I knocked at the door, but you were sleeping." The correct answer was-> J'ai frappé à la porte, mais tu étais en train de dormir.Though, I mentioned “ J'ai frappé à la porte, mais tu dormais. (L’Imparfait) As I was sleeping in progression when someone knocked.3. Ils ________ écouter.(They should listen.)Why the accurate answer is -> devraient (Le Conditionnel Présent) and not ‘doivent’ ?Merci Madame de m’aider encore. Je vous souhaite une bonne journée !

Accepted Answer

Taking your questions in turn:
1) que does not automatically require the subjunctive. Whether or not it is followed by the subjunctive is determined by other things (like uncertainty of the speaker, a wish or even certain constructions, whether a thought is expressed in a negative or positive way, etc.).
2) If I remember correctly (and I might be wrong), isn't the sentence taken from a lesson aiming to practice the use of "être en train de" ? Using this construction you emphasize that the other person was really sleeping at the very time someone knocked on the door.
3) Ils doivent écouter. -- They must listen.Ils devraient écouter. -- The should listen.

Answer

Merci beaucoup Monsieur Chris