文档介绍：Use нџжен, нужнђ, нџжно, and нужнІ with nouns, and make sure the form that you use agrees with the noun (. МнљнужнІрџчки).
Мнљ(Dat.) нужнђкрђснаярџчка(Nom.) is like English 'For me a red pen is needed', but the better translation is 'I need a red pen'.
Мнљнужнђрџчка. I need a pen.
Мнљнџжновинћ. I need wine.
Мнљнџженкарандђш. I need a pencil.
МнљнужнІкћльца. I need rings.
Чтћтебљнџжно? What do you need?
Short adjectives are predicatives, . they correspond to 'is/are'. The past tense is formed by adding the past forms of бІть after дћлжен:
Онђдолжнђписђтьмђтери. She should (ought to) write her mother.
She's supposed to write her mother.
Онђдолжнђбылђписђтьмђтери. She should have written her mother.
She was supposed to write her mother.
МІдолжнІбћльшерабћтать. We should work harder (more).
We're supposed to work harder.
Note that with дћлжен the person involved is in the Nominative case, whereas with the o-form нђдо'have to, must' the person involved is in the Dative case (as is normal with o-forms, . Мнљхћлодно'I'm cold'):
Љйнђдописђтьмђтери. She has to (must) write her mother.
Нђмнђдобћльшерабћтать. We have to (must) work harder (more).
The predicative нђдо'must, have to' is ambiguous when the negative particle не precedes: ненђдо can mean either mustn't/shouldn't or don't have to, but the usual interpretation is mustn't/shouldn't.