あしたはだれと会いますか。
- 내일 누구를 만날 것입니까?

あしたはだれと会いますか。 meaning: 내일은 누구를 만날 거예요?

Japanese sentences typically follow a Subject-Object-Verb (SOV) structure, though the subject is often omitted if it's clear from context. This sentence's structure is similar to Korean's. ⚫︎ あした(내일) is a time adverbial, modifying the verb. ⚫︎ だれと(누구와) acts as the object of the verb, indicating who the action is performed with. ⚫︎ 会いますか(만납니까) is the verb phrase and the core of the sentence, expressing the action.

Particles are crucial in Japanese for indicating grammatical roles. ⚫︎ と (to) is a particle that indicates "with" or "and" when used to show accompaniment. Here, だれと(누구와) means "with whom". ⚫︎ は(wa) is a topic marker. It indicates the topic of the sentence. In this sentence, it is omitted, but the implied topic is "you" (あなた).

Japanese verbs conjugate depending on their tense and politeness level. ⚫︎ 会います (aimasu) is the present/future affirmative polite form of the verb 会う (au), meaning "to meet." ⚫︎ The base form of the verb is 会う (au). ⚫︎ Adding ます(masu) makes it polite. The present/future polite form ends in ます(masu). ⚫︎ The question marker か(ka) is added to the end to make it a question.

Question words help form questions. ⚫︎ だれ(dare) means "who" and asks about a person. ⚫︎ It replaces the subject or object of a sentence when asking a question about a person. ⚫︎ Example: 誰が来ますか(dare ga kimasu ka?) - "Who is coming?" (Here, が(ga) is a subject marker.)

Time expressions specify when an action occurs. ⚫︎ あした(ashita) means "tomorrow." ⚫︎ It functions as a time adverbial. ⚫︎ It indicates when the meeting (会います(aimasu)) will take place.