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Japanese Verb Conjugation

Every Japanese verb changes shape depending on tense, politeness, and whether it's positive or negative. Start with the verb groups and the dictionary, ます, and plain forms, then build up the full present/past, positive/negative grid.

17 grammar points

Japanese Verb Groups | U-verbs, Ru-verbs and Irregulars

Understanding the three verb groups and how Japanese verbs work

Verb Stems (i-form) | Japanese Conjugation Base

The base stem used to build polite forms and compound verbs

Dictionary Form | Japanese Plain Present Tense

Plain/casual present-future affirmative form of verbs

Plain Form Overview | Japanese Casual Speech

The casual/informal verb system used among friends and in subordinate clauses

How to Convert Dictionary Form to Masu Form

Converting plain verbs to polite form

ます Form | Japanese Polite Verb Conjugation

Polite present/future tense of verbs

ません Form | Japanese Polite Negative

Polite present/future negative — 'do not ~'

ました Form | Japanese Polite Past Tense

Polite past affirmative — 'did ~'

ませんでした Form | Japanese Polite Past Negative

Polite past negative — 'did not ~'

ましょう Form | Let's Do ~ in Japanese (Polite)

Polite suggestion — 'let's do ~', 'shall we ~?'

ない Form | Japanese Negative Verb Conjugation

Plain negative form — 'do not do' / 'will not do'

なかった Form | Japanese Past Negative (Plain)

Plain past negative — 'did not do ~'

た Form | Japanese Past Tense (Plain)

Plain past affirmative — 'did ~'

できます | Polite Way to Say 'Can' in Japanese

Can do ~, able to ~ (polite potential)

たい Form | Saying What You Want to Do in Japanese

Want to do ~

ませんか | Inviting Someone in Japanese

Won't you ~? / Would you like to ~? (invitation)

に行く | Going Somewhere to Do Something

Go / come in order to do ~

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