Japanese Polite Verb Forms with ます

In Brief

Japanese polite verbs have four essential endings: ます for non-past affirmative, ません for non-past negative, ました for past affirmative, and ませんでした for past negative. They do not change according to who performs the action: 食べます can mean “I eat,” “you eat,” “she eats,” or “they eat,” depending on context.

Overview

The ます form is the basic polite style for Japanese verbs. It is a safe, standard choice when speaking to someone you do not know well, a teacher, a colleague, a customer, or almost anyone with whom a neutral level of politeness is appropriate. You will hear it constantly in shops, workplaces, announcements, interviews, and everyday conversations between adults.

This is an A1 grammar point because four endings let you make a large number of useful statements and questions. Japanese does not conjugate verbs for grammatical person (the speaker, listener, or another person) or number (one person versus several). Instead, a verb changes mainly for features such as time, affirmation or negation, and politeness. That makes the ます pattern regular once you know the correct verb stem—the part to which the ending is attached.

English speakers should pay special attention to time. Japanese has a non-past form rather than separate present and future verb forms. For example, 行きます can mean “I go,” “I usually go,” or “I will go.” Words such as 毎日 “every day” and 明日 “tomorrow,” together with the situation, supply the intended meaning.

How It Works

The four core forms

Meaning	Ending	Example	English meaning
Non-past affirmative	ます	食べます	eat / will eat
Non-past negative	ません	食べません	do not eat / will not eat
Past affirmative	ました	食べました	ate
Past negative	ませんでした	食べませんでした	did not eat

The same endings work for every subject:

• 私は行きます。 — I will go.
• 田中さんは行きます。 — Mr./Ms. Tanaka will go.
• 私たちは行きます。 — We will go.

Japanese often leaves out a subject when it is clear from context. 行きます by itself may therefore be a complete sentence. Do not add 私は mechanically to every sentence just because English normally requires “I.”

Non-past covers present and future

The form ending in ます is not only a “present tense.” It is used for habits, repeated actions, scheduled events, and future intentions.

Japanese	English	Time clue
毎朝、コーヒーを飲みます。	I drink coffee every morning.	毎朝 marks a habit.
これから昼ごはんを食べます。	I am going to eat lunch now.	これから points to the immediate future.
来週、大阪へ行きます。	I will go to Osaka next week.	来週 places the action in the future.

Context can also indicate an action happening now, but Japanese commonly uses the ている form for an action in progress. Thus 読みます usually means “read,” “will read,” or “regularly read,” while 読んでいます commonly means “am reading.”

Making questions

Add the question particle か to the end of a polite sentence. In careful or neutral writing, use か rather than relying only on a question mark.

• 明日、来ますか。 — Will you come tomorrow?
• コーヒーを飲みますか。 — Do you drink coffee? / Will you have coffee?
• 昨日、何を食べましたか。 — What did you eat yesterday?

Japanese questions do not change word order as English questions do. There is no equivalent of inserting “do” or moving “will” before the subject. The sentence remains in its ordinary order, and か marks it as a question.

Forming the ます stem

A Japanese verb is usually listed in its dictionary form, the plain form found in dictionaries, such as 食べる, 書く, or する. To attach the polite endings, first produce its ます stem.

Ichidan verbs

With most ichidan verbs (verbs whose ending is removed as one unit), drop the final る and add the required ending.

Dictionary form	Meaning	ます	ません	ました	ませんでした
食べる	eat	食べます	食べません	食べました	食べませんでした
見る	see; watch	見ます	見ません	見ました	見ませんでした
起きる	get up	起きます	起きません	起きました	起きませんでした

Many verbs ending in -いる or -える are ichidan verbs, but not all. Common exceptions such as 入る “enter,” 走る “run,” and 帰る “return” are godan verbs, so learn the class with the verb.

Godan verbs

With a godan verb (a verb whose final kana changes across several vowel rows), change the final u-row kana to its matching i-row kana, then add the ending.

Final kana	Stem change	Example	Polite form
う	い	買う → 買い	買います
く	き	書く → 書き	書きます
ぐ	ぎ	泳ぐ → 泳ぎ	泳ぎます
す	し	話す → 話し	話します
つ	ち	待つ → 待ち	待ちます
ぬ	に	死ぬ → 死に	死にます
ぶ	び	遊ぶ → 遊び	遊びます
む	み	読む → 読み	読みます
る	り	帰る → 帰り	帰ります

Once the stem is made, all four core endings attach in exactly the same way: 書きます, 書きません, 書きました, 書きませんでした.

The irregular verbs する and 来る

There are two essential irregular patterns.

Dictionary form	Meaning	ます	ません	ました	ませんでした
する	do	します	しません	しました	しませんでした
来る（くる）	come	来ます（きます）	来ません（きません）	来ました（きました）	来ませんでした（きませんでした）

The pattern for する also applies to the many noun + する verbs: 勉強します “study,” 料理しました “cooked,” and 運動しませんでした “did not exercise.”

The ending carries the tense and negation

Do not combine a polite ending with an already conjugated plain form. Start from the appropriate stem and choose one ending as a complete unit. It is useful to memorize ませんでした as one past-negative package, even though you can recognize ません plus the past of です within it.

Notice also that Japanese verbs do not have a special third-person ending. English changes “I eat” to “she eats”; Japanese uses 食べます in both cases.

Examples in Context

Japanese	English	Note
毎日、日本語を勉強します。	I study Japanese every day.	Habit; the subject is understood.
朝はテレビを見ません。	I do not watch television in the morning.	Non-past negative.
明日、友達が来ます。	A friend is coming tomorrow.	Future meaning from 明日.
今晩は料理しません。	I will not cook tonight.	Future negative.
昨日、駅まで歩きました。	I walked to the station yesterday.	Completed past action.
先週、その映画を見ませんでした。	I did not see that movie last week.	Past negative.
何時に起きますか。	What time do you get up?	A question about a routine.
明日、来ますか。	Will you come tomorrow?	Polite future question.
昨日、何を食べましたか。	What did you eat yesterday?	Question word remains before the verb.
週末はよく本を読みます。	I often read books on weekends.	Repeated action.
今日は電車で行きません。	I am not going by train today.	Context gives a present plan.
田中さんは会議に来ませんでした。	Mr./Ms. Tanaka did not come to the meeting.	An explicit third-person subject.
すみません、もう一度言いますか。	Excuse me, will you say that again?	Grammatically possible, though 言ってください is more natural as a request.
一緒に昼ごはんを食べませんか。	Would you like to have lunch together?	A negative question used as an invitation.

Common Mistakes

Attaching ます directly to the dictionary form

• Wrong: 食べるます
• Right: 食べます
• Why: For an ichidan verb, remove final る before adding ます. The dictionary form and ます are not stacked together.

Treating every る verb as an ichidan verb

• Wrong: 帰ます
• Right: 帰ります
• Why: 帰る is a godan verb. Its final る changes to り. Endings give useful clues, but some common -いる and -える verbs are godan and must be learned individually.

Using ます for a past action

• Wrong: 昨日、映画を見ます。 when you mean “I watched a movie yesterday.”
• Right: 昨日、映画を見ました。
• Why: 昨日 clearly places the event in the past, so use ました. Japanese does not let a past-time word replace past verb marking in a completed statement.

Building the past negative from the wrong pieces

• Wrong: 行きましたません
• Right: 行きませんでした
• Why: Choose the single past-negative ending ませんでした. Do not combine the affirmative past ました with the negative ません.

Adding an English-style auxiliary

• Wrong: しますか勉強？ based on “Do you study?”
• Right: 勉強しますか。
• Why: Japanese does not add an equivalent of English “do” to form ordinary questions. Keep the verb at the end and add か.

Assuming polite means honorific

• Wrong assumption: Any sentence with ます is highly respectful language suitable for every formal situation.
• Better understanding: ます is ordinary polite speech. It is respectful enough for many interactions, but Japanese also has keigo, a wider honorific system with special respectful and humble expressions.
• Why: Politeness level and honorific treatment overlap, but they are not identical.

Usage Notes

Where ます style sounds natural

The ます style is common with strangers, service staff and customers, teachers, coworkers who are not close friends, senior colleagues, and people meeting for the first time. It often functions as a socially neutral starting point between adults. Calling it “formal” can be misleading: it may be used in relaxed conversation while still keeping a polite distance.

Close friends and family often use plain forms instead, such as 食べる, 食べない, 食べた, and 食べなかった. Switching between styles can signal a change in closeness, attitude, or situation. As a beginner, using ます style consistently is usually safer than using plain forms too early with someone who expects politeness.

Keep the overall sentence style in mind

Verbs take ます, but nouns and many adjective sentences use です rather than ます:

• 学生です。 — I am a student.
• 静かです。 — It is quiet.
• おいしいです。 — It is delicious.
• 毎日勉強します。 — I study every day.

Do not say 学生ます. The choice depends on what ends the sentence: a verb uses the ます system, while noun and adjective predicates have their own polite patterns.

Pronunciation

In standard speech, the final す in ます is often pronounced with a very weak vowel, so it may sound close to “mas,” not a strongly articulated “masu.” Similarly, でした may sound more compact than its spelling suggests. Keep writing the full kana; reduced pronunciation does not change the grammar.

Subjects are often omitted

English repeatedly uses pronouns because a complete English clause normally needs an explicit subject. Japanese relies much more on shared context. In a conversation about your weekend, 映画を見ました naturally means “I watched a movie” without 私は. Repeating 私は can sound heavy or contrastive, though it is not grammatically wrong.

Beyond the Basics / Advanced Use

You do not need to master the following points at A1, but they explain forms you will soon encounter.

ませんか can be an invitation

A negative question does not always ask whether someone will not do something. With a voluntary action, 〜ませんか commonly offers a gentle invitation:

• 一緒に行きませんか。 — Would you like to go together?
• コーヒーを飲みませんか。 — Would you like to have coffee?

This is less direct than simply asking 行きますか, which may be interpreted as a factual question about someone’s plans. A related form, 〜ましょう, means “let’s”: 一緒に行きましょう “Let’s go together.”

The ます stem has other jobs

The stem used before ます can appear in compound patterns without ます itself. For example, 読み is the stem of 読む, and 食べ is the stem of 食べる.

• 読みたいです。 — I want to read.
• 食べ始めます。 — I begin to eat.
• 飲み物 — a drink; literally, a drinking thing

These uses are sometimes called the continuative stem or 連用形（れんようけい）, a form that connects a verb to following material. At beginner level, it is enough to recognize that the familiar ます stem is reusable.

Alternative polite past negatives

Alongside 行きませんでした, you may hear 行かなかったです. Both can be polite, but they are built differently: 行きませんでした uses the traditional polite verb ending, while 行かなかったです places です after a plain negative-past form. The first is the clearest default for a beginner and often feels more conventionally polite; the second is common in modern conversation.

Polite style is not the whole of keigo

Japanese honorific language includes sonkeigo (respectful language that elevates another person’s actions), kenjōgo (humble language that lowers the speaker’s own actions), and polite sentence endings. For example, 来ます is polite, but いらっしゃいます is a respectful way to refer to someone else coming, going, or being present. Learn ます as the foundation, not as a substitute for the entire honorific system.

Style can shift in real discourse

Natural Japanese does not always keep every clause in ます style. A speaker may use plain forms inside quoted thoughts, relative clauses (clauses that describe a noun), or certain connecting structures while ending the main sentence politely. For example, 昨日買った本を読みます means “I will read the book I bought yesterday”: 買った is plain because it modifies 本, while the main verb 読みます is polite. This is normal grammar, not careless mixing.

Practice Tips

1. Drill four forms as a set. Choose five useful verbs and say all four forms aloud: 読みます, 読みません, 読みました, 読みませんでした. Rotate through ichidan, godan, and irregular verbs.
2. Add a time word before choosing the ending. Make pairs such as 毎日行きます / 昨日行きました and 明日食べません / 昨日食べませんでした. This trains the non-past–past contrast instead of treating ます as simply “present.”
3. Listen for the sentence ending. In short clips or conversations, focus first on whether you hear ます, ません, ました, or ませんでした. You can often identify time and polarity even before you understand every word.

Related Concepts

• Prerequisite: Godan Verbs (u-verbs) — learn why the final kana changes before ます.
• Next step: Basic Negation — expand your control of affirmative and negative patterns.
• Next step: Wanting with たい — use the ます stem to say what you want to do.
• Later contrast: Plain/Dictionary Form — compare polite forms with forms used in casual speech and embedded clauses.
• Advanced connection: Honorific Language Introduction — build from ordinary politeness toward respectful and humble language.