Was it not you who said two days ago that you need to scramble the english words in your brain to get one idea? I think this is one more. From my point of view, I think it's okay to say {-nIS} = "must/need".

But there is a distinction between being required to do something and having a need to do something. It is not at all clear to me that Klingon -nIS covers both.

-- 
SuStel
http://trimboli.name