〜てください

The Japanese auxiliary phrase 〜てください (te kudasai) is the most common and fundamental way to make a polite request or give a polite instruction in Japanese. While often translated simply as 'please do,' its linguistic roots and social application are much more nuanced than the English 'please.' The phrase is composed of two distinct parts: the te-form of a verb, which acts as a connective bridge, and ください (kudasai), which is the polite imperative form of the verb kudasaru (to give/bestow). Historically, kudasaru described the act of a social superior giving something to an inferior, literally meaning 'to lower' something down. In modern usage, this hierarchy has been neutralized into a standard polite request form, but the 'giving' aspect remains: you are essentially asking someone to 'give' you the action of the verb. This makes it an essential tool for daily survival in Japan, used for everything from ordering food to asking for directions or following a teacher's instructions.

Social Function

It functions as a polite directive. It is less a 'favor' and more a 'polite command' or 'clear instruction.' In a restaurant, a waiter might say 'Please wait' (matte kudasai), which is a polite way of telling you what to do next.

Grammatical Role

It serves as an auxiliary that attaches to the conjunctive te-form. It cannot stand alone; it must always follow a verb that has been conjugated into its 'te' state.

One must understand that because 'kudasai' is technically an imperative (a command form), it carries a sense of expectation. If you use it with a boss or someone of significantly higher status, it can sometimes sound a bit too demanding, as if you are telling them what to do rather than asking for a favor. In those cases, Japanese speakers often pivot to more indirect forms like '〜ていただけますか' (te itadakemasu ka). However, for the vast majority of daily interactions—with shopkeepers, colleagues of similar rank, or in public announcements—'〜てください' is the gold standard for politeness and clarity. It is the first 'polite' structure most learners master because it allows them to navigate the world with agency. Whether you are asking someone to speak more slowly (yukkuri hanashite kudasai) or asking for a specific item (kore o kudasai), this phrase is your primary vehicle for interaction.

Contextual Usage

Used in manuals, signs, and public announcements to give instructions to the general public. For example, 'Please refrain from smoking' (kitsuen wa go-enryo kudasai).

Furthermore, '〜てください' is not just for physical actions. It is used for mental processes and states of being. You can ask someone to 'please remember' (oboete kudasai) or 'please be careful' (ki o tsukete kudasai). This versatility makes it one of the most high-frequency phrases in the language. In the classroom, a teacher will constantly use 'kiite kudasai' (please listen), 'kaite kudasai' (please write), and 'yonde kudasai' (please read). It establishes a polite but clear hierarchy of instruction. For learners, mastering the conjugation of verbs into the te-form is the only barrier to using this phrase effectively. Once you know the te-form, you can request anything. It is the key that unlocks the ability to ask for help, order services, and engage with the Japanese-speaking community in a respectful, understandable manner.

Variation

The negative form is '〜ないでください' (naide kudasai), used to ask someone NOT to do something. It is equally important for setting boundaries or giving safety warnings.

Using 〜てください correctly requires a solid understanding of Japanese verb conjugation, specifically the Te-form. The Te-form is often called the 'connective form' because it allows verbs to link to other verbs or auxiliaries. To use '〜てください,' you must first identify the group of the verb you want to use. Japanese verbs are categorized into three groups: Group 1 (U-verbs/Godan), Group 2 (Ru-verbs/Ichidan), and Group 3 (Irregular verbs). Each group has its own rules for transforming the dictionary form into the te-form. Once you have the te-form, you simply append 'kudasai' to the end. This structure is rigid; you cannot put other words between the te-form and kudasai, although you can add adverbs before the verb to modify the action.

Group 1 (Godan Verbs)

These verbs have endings that change based on the final syllable. For example, verbs ending in -u, -tsu, or -ru change to -tte (e.g., kau -> katte). Verbs ending in -mu, -bu, or -nu change to -nde (e.g., nomu -> nonde). Verbs ending in -ku change to -ite (e.g., kaku -> kaite), and -gu changes to -ide (e.g., oyogu -> oyoide). Verbs ending in -su change to -shite (e.g., hanasu -> hanashite).

Group 2 (Ichidan) verbs are much simpler. You simply remove the final 'ru' and add 'te'. For example, 'taberu' (to eat) becomes 'tabete,' and 'miru' (to see) becomes 'mite.' This consistency makes Group 2 verbs the easiest to use with 'kudasai.' Group 3 consists of only two irregular verbs: 'suru' (to do) becomes 'shite,' and 'kuru' (to come) becomes 'kite.' These must be memorized as they don't follow the standard patterns. When you combine these with 'kudasai,' you create a polite request. For example, 'Benkyo shite kudasai' (Please study) or 'Kite kudasai' (Please come). The sentence structure usually follows the pattern: [Object] + [Particle] + [Verb in Te-form] + ください. For instance, 'Hon o yonde kudasai' (Please read the book).

Negative Requests

To ask someone NOT to do something, use the 'nai-form' (negative form) of the verb, add 'de,' and then 'kudasai.' For example, 'taberu' -> 'tabenai' -> 'tabenaide kudasai' (Please don't eat).

It is also important to note the intonation. When saying '〜てください,' the pitch usually remains relatively flat or slightly drops at the end of 'kudasai.' It should not sound like a question unless you are using the more polite 'kudasaimasen ka' form. In written Japanese, 'kudasai' is almost always written in hiragana (ください), although the kanji (下さい) does exist. Using hiragana is considered more standard for its function as an auxiliary verb. When giving a sequence of instructions, you can use multiple te-forms and end the final one with kudasai. For example, 'Suwatte, hon o akete kudasai' (Please sit down and open your book). This demonstrates the 'connective' nature of the te-form working in tandem with the request auxiliary. Mastery of this pattern allows for complex, polite communication in any professional or social setting in Japan.

Common Adverbs

Words like 'motto' (more), 'yukkuri' (slowly), or 'chotto' (a little/a moment) are frequently used with this form to specify how the action should be performed.

In Japan, 〜てください is omnipresent. You will hear it from the moment you step onto a Japanese train until you leave a convenience store at night. Its primary 'habitat' is any environment where instructions or polite guidance are necessary. For instance, in public transportation, automated announcements frequently use this form to ensure passenger safety. You'll hear 'Ashi-moto ni go-chui kudasai' (Please watch your step) or 'Doa kara hanarete kudasai' (Please move away from the doors). These are not mere suggestions; they are polite but firm directives intended to keep the system running smoothly. The use of 'kudasai' here maintains a professional distance while being perfectly clear about what the listener needs to do.

In Restaurants and Shops

Staff will use it to guide you through the service. 'Sho-sho omachi kudasai' (Please wait a moment) is perhaps the most common phrase a tourist will hear. When you pay, they might say 'O-tashikame kudasai' (Please confirm [the amount]).

In the Japanese workplace, '〜てください' is the standard for peer-to-peer requests or instructions from a manager to a subordinate. A manager might say 'Kono shiryo oコピーしてくたさい' (Please copy these documents). While polite, it clearly indicates that the task is expected to be done. Conversely, a subordinate would rarely use '〜てください' to a high-level boss, as it can sound like giving an order. Instead, they would use '〜ていただけないでしょうか' (Could I possibly receive the favor of...). This subtle distinction is crucial for navigating Japanese corporate culture. However, in emails between colleagues of similar standing, '〜てください' is perfectly acceptable and efficient. It strikes a balance between being respectful of the other person's time and being direct about the need.

In Education

Teachers are the primary users of this form. 'Shizuka ni shite kudasai' (Please be quiet) or 'Ma o muite kudasai' (Please look forward). It creates a structured environment where the teacher's authority is maintained through polite language.

You will also see '〜てください' on signage everywhere. From 'Koko ni gomi o sutenaide kudasai' (Please do not throw trash here) to 'Kutsu o nuide kudasai' (Please take off your shoes) at the entrance of a temple or a traditional home. These signs use the form because it is the most unambiguous way to communicate rules to the public without being unnecessarily rude. It is the language of civic order. For a learner, hearing this phrase is often a 'safety net'—it tells you exactly what is expected of you in a given situation. If you hear 'te kudasai,' you know an action is being requested. Paying attention to the verb that precedes it is the fastest way to understand your environment in Japan.

Emergency Situations

Even in emergencies, 'kudasai' is used for clarity. 'Nigete kudasai!' (Please run/escape!) is a common phrase in earthquake or tsunami warnings, combining urgency with clear instruction.

One of the most frequent mistakes beginners make with 〜てください is using the wrong verb conjugation. Because the te-form is so varied, it's easy to say 'nomite kudasai' instead of 'nonde kudasai' or 'kakite kudasai' instead of 'kaite kudasai.' These errors are usually understood by native speakers but can make the speaker sound very unpolished. Another common error is forgetting that 'kudasai' is an auxiliary verb and trying to use it with nouns directly in a request for action. You cannot say 'Coffee kudasai' if you mean 'Please drink coffee' (that would mean 'Give me coffee'). To ask someone to perform an action, you must use the te-form of the verb. 'Coffee o nonde kudasai' is the correct way to ask someone to drink.

The 'Superior' Trap

As mentioned, 'te kudasai' is a directive. Using it with a high-ranking boss, a professor, or a customer can be seen as slightly rude or overly assertive. For example, telling a customer 'Koko ni kaite kudasai' (Please write here) is okay, but 'O-kaki kudasai' or 'O-kaki itadakemasu ka' is much more appropriate in high-level service. Learners often use 'te kudasai' for everything because it's the first polite form they learn, but as you progress, you must learn to soften it.

Another mistake is confusing '〜てください' with '〜てくださいませんか' (te kudasaimasen ka). While they look similar, the latter is a question ('Won't you please...?') and is much more polite because it gives the listener an 'out' to say no. 'Te kudasai' is a request that assumes the person will comply. Using 'te kudasai' when you are asking a huge favor from a stranger can come across as entitled. For example, if you ask a stranger to take your photo, 'Shashin o totte kudasai' is acceptable, but 'Shashin o totte itadakemasen ka' is much more natural and polite. Learners also often struggle with the negative form '〜ないでください.' They might accidentally say '〜なくてください' (nakute kudasai), which is grammatically incorrect. The negative request always uses the 'nai' stem + 'de'.

Mixing Registers

Sometimes learners mix 'kudasai' with casual verb forms or vice versa. For example, 'taberu kudasai' is wrong. You must use the te-form 'tabete.' Similarly, using 'te kudasai' in a sentence that is otherwise very casual can sound jarring and inconsistent.

Finally, there is the 'Double Kudasai' mistake. In English, we might say 'Please, please do it.' In Japanese, you don't say 'Kudasai, kudasai.' Instead, you use adverbs like 'Douzo' (Please, go ahead) or 'Onegai shimasu' (I beg of you) to add emphasis. For example, 'Douzo, tabete kudasai' is a very warm and polite way to offer food. 'Onegai shimasu, tasukete kudasai' (Please, help me) is used in more desperate situations. Understanding that 'kudasai' is a grammatical auxiliary and not just a floating 'please' is the key to avoiding these common pitfalls. It requires a shift in thinking from English-style word-for-word translation to Japanese-style structural conjugation. Once you respect the te-form and the social hierarchy, your requests will sound much more natural.

While 〜てください is the most versatile request form, Japanese has a rich spectrum of alternatives that vary based on politeness, gender, and the nature of the request. Understanding these alternatives is essential for moving from a beginner to an intermediate level. The most common alternative is 〜てくださいませんか (te kudasaimasen ka). This is the negative-question form of 'te kudasai.' By asking 'Won't you please do...?', you are being much more polite because you are acknowledging that the other person has the right to refuse. This is the preferred form when asking a favor from a stranger or a superior. It softens the 'command' nature of 'te kudasai' into a genuine request.

〜てください vs 〜てくださいませんか

'Te kudasai' is a polite instruction (e.g., a teacher to a student). 'Te kudasaimasen ka' is a polite request (e.g., asking someone to move their bag so you can sit).

Another common alternative is 〜てください（な）い (te kure). This is the casual version of 'te kudasai.' It is used among close friends, family members, or by superiors to subordinates in very informal settings. It is much more direct and can sound rough or masculine depending on the tone. Women often use 〜て (te) by itself with a rising intonation to make a casual request, such as 'Kite!' (Come!). This is the most common way to ask for things in a relaxed, 'uchi' (inner circle) environment. On the opposite end of the spectrum is 〜ていただけますか (te itadakemasu ka). This is very formal and humble. It literally means 'Can I receive the favor of you doing...?' This is the standard for business emails and talking to high-status individuals.

〜なさい (Nasai)

This is a firm command used by parents to children or teachers to young students. 'Tabenasai!' (Eat your food!). It is more authoritative than 'te kudasai' and lacks the 'please' nuance entirely.

In very formal or written contexts, you might see 〜（ご）〜ください (o/go... kudasai). This is the honorific request form. For example, 'O-kaki kudasai' (Please write) or 'Go-ran kudasai' (Please look). This removes the 'te' and uses the honorific prefix with the verb stem. It is the peak of professional politeness. Finally, there is the 〜てほしい (te hoshii) form, which expresses a personal desire for someone to do something. 'Kite hoshii' (I want you to come). This is not a direct request but an expression of feeling, often used with close friends to hint at a request without being demanding. By learning these variations, you can tailor your Japanese to perfectly fit the social situation, moving beyond the 'one-size-fits-all' approach of 'te kudasai.'