How do you say "Our Souls Fade and Our Bodies Crumble" in Latin?

I tried running it through an online translator, but the year of Latin I took in high school is making me assume it's wrong. Unfortunately, I have neither a Latin dictionary nor enough knowledge of the grammar to figure it out myself. Help, please?|||Animae nostrae marcescunt et corpora collabuntur.|||Animae nostrae pallent putrentque corpora nostra