ましょう proposes doing something together, ましょうか offers or suggests it, and ませんか invites politely. All three follow the stem of the ます‑form: 食べましょう。食べましょうか。食べませんか。
Summary
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| Point | Rule | Example | English | Level |
|---|---|---|---|---|
| Form | stem + ましょう / ましょうか / ませんか | 食べましょう。 | Let’s eat. | |
| ましょう | “Let’s…”: a proposal to act together. | いっしょに行きましょう。 | Let’s go together. | |
| ましょうか | “Shall we…?” or “Shall I…?”: a suggestion or an offer. | てつだいましょうか。 | Shall I help you? | |
| ませんか | “Would you like to…?”: a polite invitation. | えいがを見ませんか。 | Would you like to watch a film? | |
| Accepting | Say いいですね, then repeat the verb. | いっしょに行きませんか。 — いいですね。行きましょう。 | Would you like to go together? — Sounds good. Let’s go. | |
| Declining | Say すみません、ちょっとむずかしいです and give a reason. | あした、行きませんか。 — すみません、あしたはちょっとむずかしいです。 | Would you like to go tomorrow? — I’m sorry, tomorrow is a little difficult. | |
| Trap | The ending follows the stem, never the dictionary form. | 行きましょう。 | Let’s go. | |
| Trap | Offer your own help with ましょうか, not ませんか. | まどをあけましょうか。 | Shall I open the window? |
Overview
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- The ending follows the stem, the ます‑form without ます: 飲み, 食べ. The verb group makes no difference (Verb Groups). 飲みましょう。 / 食べましょう。Let’s have a drink. / Let’s eat.
- いっしょに (“together”) stands before the verb and makes the invitation clear. いっしょに行きましょう。Let’s go together.
- The endings carry no tense; a time word says when: あした (“tomorrow”), こんど (“next time”). あした、いっしょに行きませんか。Would you like to go together tomorrow?
Form: three endings
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| Form | Meaning | Example | English | Level |
|---|---|---|---|---|
| stem + ましょう | “Let’s…” | 飲みましょう。 | Let’s have a drink. | |
| stem + ましょうか | “Shall we…?” “Shall I…?” | 見ましょうか。 | Shall we take a look? | |
| stem + ませんか | “Would you like to…?” | 行きませんか。 | Would you like to go? |
- ませんか is the polite negative ません plus the question か (Questions); asked as an invitation, it is softer than ますか. えいがを見ませんか。Would you like to watch a film?
- ましょうか with a question word asks for a shared decision. 何を食べましょうか。What shall we eat?
Use
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| Point | Rule | Example | English | Level |
|---|---|---|---|---|
| Proposal | ましょう: the speaker has decided and expects the listener to join. | いっしょにひるごはんを食べましょう。 | Let’s have lunch together. | |
| Invitation | ませんか: asks whether the listener wants to; the polite choice for people you do not know well. | あした、いっしょにえいがを見ませんか。 | Would you like to see a film together tomorrow? | |
| Suggestion | ましょうか for “we”: suggests an action now and waits for the answer. | そろそろはじめましょうか。 | Shall we start soon? | |
| Offer | ましょうか for “I”: offers to do something for the listener. | てつだいましょうか。 | Shall I help you? |
Answering an invitation
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| Point | Rule | Example | English | Level |
|---|---|---|---|---|
| Accepting | Say いいですね (“sounds good”) or ええ (“yes”), then repeat the verb. | いっしょに行きませんか。 — いいですね。行きましょう。 | Would you like to go together? — Sounds good. Let’s go. | |
| Declining | Refuse softly: すみません、ちょっとむずかしいです and a reason; a bare いいえ sounds cold. | あした、行きませんか。 — すみません、あしたはちょっとむずかしいです。 | Would you like to go tomorrow? — I’m sorry, tomorrow is a little difficult. | |
| Offer | Answer an offer with おねがいします (“yes, please”) or だいじょうぶです (“no need”). | てつだいましょうか。 — おねがいします。 | Shall I help you? — Yes, please. |
Typical errors
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| Wrong | Right | Rule | Level |
|---|---|---|---|
| いっしょに行くましょう。 | いっしょに行きましょう。 | the ending follows the stem 行き, not the dictionary form 行く | |
| いいえ、行きません。 | すみません、ちょっとむずかしいです。 | a flat refusal sounds cold; apologise with すみません and give a soft reason | |
| まどをあけませんか。 | まどをあけましょうか。 | to offer to do it yourself, use ましょうか; ませんか asks the listener to join in |