必要, 必用, ひつよう
NA-adjective, 必用 can imply has to be used rather than is just needed
1. necessary, needed, essential, indispensable
2. necessity, need, requirement
歯医者に行く必要はないですよ。
ですか
Expression, See か・1, Polite, at sentence-end
indicates question
あなたはどこの国の出身ですか。
な, なあ, なー, なぁ
Only な, Particle, prohibitive; used with dictionary form verb
1. don't
imperative (from なさい); used with -masu stem of verb
2. do
Interjection, used to get someone's attention or press one's point
3. hey, listen, look, say
when seeking confirmation, for emphasis, etc.; used at sentence end
4. now, ..., well, ..., I tell you!, you know
used to express admiration, emotionality, etc.; used at sentence end
5. wow, ooh