すみません、事務所は何階ですか？

N3 すみません sumimasen sorry, excuse me, thank you N4 事務所 jimusho office, agency N5 何 nani / nan what

N4 事 ji, zu / koto, tsuka.u, tsuka.eru matter, thing, fact N3 務 mu / tsuto.meru task, duties, tâche N3 所 sho / tokoro, -tokoro, dokoro, toko place, extent, lieu N5 何 ka / nani, nan, nani-, nan- what, quoi, qué N2 階 kai / kizahashi storey, stair, counter for storeys of a building

N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N5 〜か ka Marks a question, alternative, or uncertainty, appears at the sentence end or between options N5 〜です desu Used at the end of a sentence, polite affirmative form, means to be depending on context N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information