OK, but we'd have to have room before me and this might interfere with the others: We want notified a neighbor before the Prophet that the birthday party on Saturday.
Okay, now that we must have a room before, and this may be as loud as to disturb others. We need good neighbors that have a birthday party on Saturday.
Okay, fine, but we need to arrange the room before and this work may be noise disturbed by others. We must notify the neighbors that is to hold a birthday party on Saturday.