can't quite understand them. have had a bash at these sentences but i think there's lots wrong with them:
1. We must sleep in this villa.
haec villa est dormienda nobis.
should haec villa be in the nominative??
2. I think the captives should be set free.
scio captivi liberandi sunt.
think this one's ok.
3. By running quickly, Marcus reached the garden first.
celeriter currendo, Marcus hortum primus pervenit.
is currendo ok?? is primus ...