Translation:Forte stercus sordidum est in ponte.
Who came up with this sentence xD
You think it's by chance?
... well that isn't in the Cambridge Latin Course!!
What about Fortasse?
Fortasse has the considerably different meaning of "perhaps"
why is sordidum in the accusative?
it's not, sordidum is nominative. it happens to look like an accusative because it's neuter to agree with the neuter noun stercus. all neuter nominatives look like accusatives.