Polite Questions with 〜ますか

Asking a polite yes/no question in Japanese is almost insultingly easy: take a ます-form statement and stick か on the end. 行きます (I'll go) → 行きますか (will you go?). That's the entire operation — no flipped word order, no auxiliary "do," no anything. This page covers that core move and then two close relatives built on the same frame: the 〜ませんか invitation and the 〜ましょうか offer.

Statement + か = question

In English, turning "You drink coffee" into a question forces two changes: you insert "do" and you invert ("Do you drink coffee?"). Japanese does neither. The particle か at the end of a polite sentence marks the whole thing as a question, and the word order never moves.

Because か itself announces the question, rising intonation is optional in polite speech — many speakers keep a flat or even slightly falling pitch on ますか and let the particle do all the work. In writing, か is so unambiguous that formal Japanese often uses a full stop (。) rather than a question mark; the ？ you see is a casual, imported convenience.

One frame, yes/no and information questions

Here is the elegant part. The very same 〜ますか frame produces both kinds of question. Leave the sentence as-is and you get a yes/no question. Drop a question word (何, どこ, いつ, だれ…) into the normal slot for that piece of information, keep ますか at the end, and you get an information question. There is no separate interrogative conjugation in Japanese — none at all.

Notice 何 sits exactly where the object would sit (何を食べますか mirrors パンを食べます) — the question word does not jump to the front the way English "what" does. The frame is identical to the yes/no version; only the presence of a question word changes what's being asked. Learn 〜ますか once and you have every polite question in the language. (The question particle か has its own subtleties — see the question particle か.)

Answering a ますか question

Answer with はい (yes) or いいえ (no), then, if you continue, echo the verb in the matching polite form. The negative answer naturally uses ません.

The same か works for です sentences

か is not special to verbs — it is the polite question particle for the whole language. The other polite sentence-ending, the copula です (used with nouns and な-adjectives), takes か in exactly the same way: statement + か = question. So ますか and ですか are two instances of one rule.

That is why every polite question you meet ends in either ますか (verbs) or ですか (nouns and な-adjectives): both are just a polite predicate with か bolted on. There is nothing else to learn — no third question machinery hiding anywhere.

〜ませんか — the invitation

Put the question on the polite negative (ません + か) and, surprisingly, it becomes an invitation: "Won't you…? / How about…?" It sounds softer and more considerate than a bare ますか, because phrasing the offer negatively leaves the listener an easy, face-saving out — exactly like English "Wouldn't you like to…?" This is the standard, natural way to invite someone to do something with you.

To accept, you typically answer with the positive: はい、見ましょう (Yes, let's) — which lands us on the next form.

〜ましょうか — offering to do it yourself

Attach ましょうか to the stem and you are offering — "Shall I…? / Shall we…?" It springs from the volitional 〜ましょう ("let's"), softened into a question by か. Use it to volunteer help or to propose doing something together.

Keep these three straight: ますか asks whether the listener will do something; ませんか invites the listener to do it with you; ましょうか offers to do it yourself or together. The volitional ましょう is a full topic of its own — see a preview of 〜ましょう.

Common mistakes

Key takeaways

• A polite question is just ます-statement + か — no inversion, no "do."
• か carries the question, so rising intonation is optional and the verb never moves.
• The same frame handles yes/no and information questions (何を食べますか) — Japanese has no separate interrogative form.
• ませんか invites (Won't you…?); ましょうか offers (Shall I…?). Don't use plain ますか where an invitation or offer is meant.