"möjlighet" seems very similar to "можливість"/"возможность". I wonder what the origin of this word is.
They're related, it's an old indoeuropean word. may is an English cognate. Also makt ('power') has the same root as мочь.
Dutch and German too
Wow! So it was not only me, who used it as a hint to remember. :)
Are all words ending with "het" n-words?
Yes. Words ending with -are, -(er)ska, -inna, -(t)ör, -log, -(n)ing, -het , -else, -tion are n-words (lärare, kokerska, frisörska, grevinna, redaktör, geolog, släkting, spelning, klokhet, frestelse, nation).
Jag kom ihåg att orden som slutar med "ande" är ett-ord. Vad är andra exempel?
The -eri words are ett-words too, for example bageri (bakery).
What about "fängelse"? I thought it was an ett-word.
Yes, you are right! It is "ett fängelse", so it must be an exception. That's the only one I can think of (for the moment) though :).
Dess pluralform är dock "fängelser", alltså som om det var ett en-ord. Jag undrar varför.
It's not a common plural for neuter, but "vin - viner" and "parti - partier" are similar.
Would it is an opportunity also be acceptable here?
'There is an opportunity' also should be accepted right?
No, that'd be det finns.