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ます形

masu-kei
noun★Intermediate— masu-form (polite verb form)
formal

The polite, affirmative conjugation form of Japanese verbs ending in -masu, used in formal contexts, requests, and general polite speech.

毎日、朝ごはんを食べます。

I eat breakfast every morning (polite).

この本を読みますか。

Will you read this book? (polite question)

💡

The -masu form is derived from the verb ます (masu), which is itself a polite auxiliary verb. It is the standard form taught in beginner Japanese courses and is essential for formal interactions.

Collocations

ます形の否定形negative masu-form (-masen)ます形の過去形past masu-form (-mashita)ます形の否定過去形negative past masu-form (-masen deshita)

Synonyms

丁寧形敬体

Antonyms

informal formplain form

Related Phrases

丁寧語phrase
polite language (keigo)

💡Pro Tip

When to use ます形

Always use the -masu form when speaking to strangers, superiors, or in formal situations. It is also the default form used in written Japanese unless specified otherwise.

⚡Gold Rule

Conjugation pattern

To form the -masu form, take the verb stem and add -masu. For example, 食べる (taberu, 'to eat') becomes 食べます (tabemasu).

📖Word Origin

The -masu form originates from the verb ます (masu), which is a polite auxiliary verb derived from the classical verb ます (masu, 'to do'). The -masu ending itself is a contraction of the polite auxiliary verb ます (masu) attached to the verb stem.

📝Usage Notes

The -masu form is used in all formal contexts, including business, academic settings, and polite conversations with strangers or superiors. It is also the standard form used in dictionaries and textbooks. The negative form is -masen, and the past tense is -mashita.

Word Breakdown

ます
polite auxiliary verb
suffix
+
形
form, shape
noun
和英辞典

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