トイレはどこにありますか。

N5 トイレ toire restroom / toilet N5 どこ doko where N5 あります arimasu there is / exist

N5 〜か ka Marks a question, alternative, or uncertainty, appears at the sentence end or between options N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information