French language Q&A Forum

Hello: I'm wondering why the two phrases "will there be" (popcorn) and "there must be" (mermaids) require avoir rather than être. "Est-ce qu'il y être" doesn't sound right, but I don't why. On the other hand, "il doit être des sirènes" sounds okay. I'd be grateful for an explanation.

Thanks so much!

  I notice that in the written and dictation practice exercises, the material drawn upon is mainly focused on the level that the exercise is from, and doesn't seem to build as much on the progress of grammatical topics from previous levels.

   I find that in doing lessons from lower levels, I often catch myself not knowing something, and it's very humbling. But that's what I'm here to do (I have a premium subscription to progress with Lawless French), to learn another language.

  Thank you in advance for any feedback.

In the second sentence, the conversation has "lui" although it is hard to distinguish "lui" from "leur" with the speaker's intonation.  For the remainder of the conversation, the conversation has "leur" when referring to the recipient(s) of the gift.  While I can get the difference after listening for multiple times, I still find it strange that the two are not consistent.