if i wanted to say 'there would be a demonstration on campus if the university closed all the bars'
would it be
'il y serait une manifestation sur le campus si l'université fermait toutes les barres'
or is it 'il y avait?' i am very confused!
This expression "there is / there are" is always translated with "il y a".
You've to deal with the tense of the verb actually : there is : il y a there was : il y avait there would be : il y aurait
Not very hard
Hope it helps