"Brudne noże i widelce."

Translation: Dirty knives and forks.

[va-diim]

This is not a complete sentence; there is no verb. There is no need for either first-word capitalization or punctuation.

[Jellei]

No need, but it can be an answer to a question, so it's definitely not wrong per se.

Co leży na stole? Brudne noże i widelce.

[va-diim]

Przepraszam, I was being anal retentive on that one.

[VladTepesX]

Why not filthy?

[alik1989]

Ok, let's add it.