I have some Latin sentences here I'd like people to check over. I haven't done this kind of thing in about 8 years, so I feel pretty rusty and that I'm probably overlooking something important or making silly basic mistakes. Yes, I know the actual content of the sentences is pretty odd.
1) susurrus erat. 2) susurrus sub pavimento emanabat. 3) ut susurrum audiremus, in pavimentum recuibimus. 4) susurro continuatus, hortos intravimus. 5) susurrus cessandus est. 6) timebamus ne susurrus non cessaret (particularly not sure about the tenses on this one)