French language Q&A Forum

Another one of those nuances that I cannot really see any pattern to is when to use the words "soir" or "nuit". "Soir" seems to be used more frequently with the phrase "every night" ("tous les soirs", "chaque soir") but not exclusively. Every now & then I see "tous les nuits" or "chaque nuit" for the same phrase. 

Should "nuit" be used only when there is a specific time frame, like when somebody works a night shift or the specific time is given that makes it obvious that the action is taking place "at night", & "soir" be used in a more generic sense? 

This question referring to visitors either visiteurs or visiteuses has a reference to adjectives ending in "er" becoming "ere" in the feminine. Could you please explain how this is relevant? I'm really missing something here.

Regards,

Neil

Hello, today while watching the news I picked up the sentence:

on a isolé les murs au cas où nous devions rester longtemps.

I wonder why "devrait" is not used in this case.

And can we use e.g. /dans le cas où + sentence/ instead of /au cas où + sentence/ ?

Merci.

J'ai vu des oiseaux passer dans le ciel.

J'y en ai vu passer 

J'en ai vu y passer

Which of the above is right?

Is it still considered general when the adjective is followed by "here", why does this not revert back to the normal agreement rules?

Bonjour, je voudrais savoir si'il y a (il doit que) pour sobjonctif

J'ai vu cette exemple:

Il doit partir la semaine prochaine. 

Est-ce qu'on peut dire aussi:

Il doit que nous partions la semaine prochaine. 

Is the best way to understand this construction in the context of this lesson to think of the sentence in English as "If Joseph could come, it would be great"? An example of this reversed structure would be good in the lesson.