Translation

Hello.. I have a question about translations. I downloaded catch-evolution and translated it to swedish, then I noted an error or mistake.

And it’s on the blogsite when some one replays it says: “One thought about…” And with my translation to swedish it was correct “En tanke om” but then I noticed that if 2 people replayed it got back to english and it said: 2 thoughts about…”.

Then I looked at other POT files there was 2 options for this, 1 singular and 1 plural but in the catch-evolution there where only the singular part. How can I make it to translate plurals? Hope you understand my bad english..