How to Say Could You in Japanese: The Request Ladder from Kudasai Upwards

The ladder at a glance

Every rung is built on the te form of a verb, so the first job is to make te forms quickly: okuru becomes okutte, matsu becomes matte, tetsudau becomes tetsudatte, suru becomes shite. The ending you attach after it sets the politeness level.

From bottom to top the endings are te kudasai, te kuremasen ka, te moraemasu ka, te itadakemasu ka and te itadakenai deshō ka. The bottom rung is an instruction with a polite finish, the middle rungs are ordinary requests between adults, and the top rungs treat the listener as someone doing you a considerable kindness. The same sentence sounds like a memo at the bottom and a careful favour at the top.

Te kudasai: when an instruction is fine

Kudasai is the imperative of kudasaru, an honorific verb for giving, but te kudasai now functions as a polite instruction. It is correct wherever the listener is expected to do the thing anyway: telling a taxi driver where to turn, asking a waiter for water, or a teacher telling a class to open their books. Signs and announcements use it constantly, which is why learners meet it first.

The trouble starts when the listener is doing you a favour. Chotto tetsudatte kudasai to a colleague is grammatical but sounds like you are assigning work; the fix is a higher rung, tetsudatte moraemasu ka. A useful test: could you reasonably tell the person to do it? If yes, kudasai is fine. If you would be asking, climb.

Two cousins are worth knowing: te kudasaimasen ka, a genuine request at roughly the level of te itadakemasu ka, and onegai shimasu after a noun, a polite request without any verb that is common at counters.

Te kuremasen ka and te moraemasu ka: everyday requests

These two rungs carry most of daily life. They come from two different verbs of giving and receiving. Kureru means someone gives to me, so te kuremasen ka asks would you not do this for me, with the negative making it a softer question. Morau means I receive, so te moraemasu ka asks could I receive this action from you. The kureru family points at the giver and feels warmer and more personal; the morau family points at yourself and feels a touch more neutral.

In practice the difference is small: many speakers use kuremasen ka with people they know and moraemasu ka with people they do not. Both become a little softer in the negative, so te moraemasen ka is a shade more tentative than te moraemasu ka.

With friends, drop the polite endings: te kureru?, te kurenai?, te moraeru? Even simpler is the te form on its own with a rising tone, matte? Among close friends te kudasai would sound as if you were talking to a stranger.

Te itadakemasu ka and te itadakenai deshō ka: at work and with customers

Itadaku is the humble form of morau, so te itadakemasu ka is te moraemasu ka spoken from a lower position. It is the workhorse of business Japanese: emails, calls, meetings, and anything said to a client, a customer or a senior colleague. Shop staff will use it to you, go-kinyū itadakemasu ka, could you fill this in, and you can use it back when you want something outside the routine.

The top rung adds two layers of softness: itadakenai is the negative, and deshō ka replaces desu ka with a gentler, more speculative question, so te itadakenai deshō ka sounds like would it perhaps be possible for you to. Use it when the request is heavy: a deadline extension, a change to a signed plan, or a favour from someone very busy. For small things it sounds odd, as if passing a pen were a large matter.

Cushions: sumimasen ga and the phrases before the request

Japanese requests rarely begin with the verb. A short cushion phrase, kusshon kotoba, prepares the listener and signals that you know you are asking for their time. The cushion does not change the grammar of the request; it changes how the request is received, and it lets you use a lower rung than you otherwise could. Sumimasen ga plus te moraemasu ka often feels as polite as te itadakemasu ka on its own.

The set runs from casual to formal. Chotto ii desu ka opens a small request with colleagues. Sumimasen ga is the everyday cushion for strangers and staff. Osore irimasu ga is for customers and clients. O-isogashii tokoro mōshiwake arimasen ga, sorry to bother you when you are busy, is for a senior person or a favour that will take time. Moshi yokereba, if it is all right with you, leaves the listener room to say no.

Choosing a rung by situation

The table below matches common situations to a rung and a cushion. Treat it as a starting point: if the request is bigger than usual, move up one rung; if you know the person well, move down one.

Making the request easy to grant

Politeness is only half of a good request. The other half is giving the listener what they need to say yes: what exactly, by when, and why. Japanese speakers often state the reason first with node or n desu ga, and only then ask, which makes the request far easier to accept.

• Give the reason before the request with node or n desu ga
• Name the deadline with made ni, and offer a fallback if it is tight
• Keep the request to one action; split two favours into two sentences
• Leave a way out with moshi muzukashikereba, if it is difficult
• Thank in advance with yoroshiku onegai shimasu, then again afterwards

If the answer is chotto muzukashii desu ne, treat it as a no and thank them anyway: sō desu ka, wakarimashita, arigatō gozaimasu. Pressing again on the same rung rarely works.

Mistakes that make requests sound off

The first mistake is using kudasai for favours. The second is the opposite: climbing to itadakenai deshō ka for every small thing. Over-politeness creates distance, so keep the top rung for requests that genuinely cost the listener something.

The third is mixing families in one sentence. Kurete itadakemasu ka and moratte kuremasen ka are both wrong, because kureru and morau or itadaku look at the same action from opposite sides. Choose one verb of giving per request. The fourth is forgetting the question. Okutte itadakemasu, without ka, is a statement that you can receive the file, not a request. The rising tone and the ka are what make it a question.

Finally, watch the word please. Dōzo offers something to the listener, as in dōzo o-suwari kudasai, and does not soften a request for help. The word for that job is onegai shimasu, which can close almost any request.