Как правильно писать: вечнонезабытый или вечно незабытый? Вечно неженатый или вечнонеженатый? Similar question for words with this structure.
I know that, e.g., вечнозелёный (the word doesn't havewithout не), for example, is written as one word, although I amI’m not sure if it isit’s an exception of sorts.
