"I am sorry, no cats."

[adampj]

I'm struggling - surely "Het spijt me, nee katten"?

[Simius]

"Nee" is only used as the opposite of "ja" (yes), mostly to answer questions. For negating nouns, Dutch uses "geen". See here: https://www.duolingo.com/comment/3734833

[adampj]

@Simius - thank you very much that has really helped me!!! :)