🇯🇵 Japanese grammar

The Past Tense in Japanese: A Clear Guide

The SPAIKING TeamJuly 28, 2026

The past tense in Japanese is essential for expressing actions that have already occurred. It allows speakers to convey completed actions or events. Understanding how to use the past tense is crucial for effective communication.

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The rule

In Japanese, the past tense is formed by conjugating verbs into their past forms. For regular verbs, the ending changes based on whether the verb is a 'ru' verb or a 'u' verb. 'Ru' verbs typically drop the 'ru' and add 'ta', while 'u' verbs change the final 'u' sound to 'tta' or 'ita' depending on the verb group. This conjugation indicates that the action has been completed.

The Past Tense at a glance

FormConjugation
Dictionary Formtaberu
Past Affirmativetabeta
Past Negativetabenakatta
Past Negative (formal)tabemasen deshita

Conjugation of the verb 'taberu' (to eat) in the past tense

Examples you can say out loud

私は寿司を食べました。 Watashi wa sushi o tabemashita.
I ate sushi.
彼は映画を見た。 Kare wa eiga o mita.
He watched a movie.
彼女は本を読まなかった。 Kanojo wa hon o yomanakatta.
She did not read a book.
私たちは公園に行った。 Watashitachi wa koen ni itta.
We went to the park.
あなたは宿題をしなかった。 Anata wa shukudai o shinakatta.
You did not do your homework.
Common mistake
Confusing the past tense with the present tense, leading to incorrect verb forms.
Tip
Practice conjugating both 'ru' and 'u' verbs to become familiar with their patterns.

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Frequently asked questions

How do I know if a verb is a 'ru' or 'u' verb?

Generally, 'ru' verbs end in 'ru' and include verbs like 'taberu' (to eat), while 'u' verbs end in other sounds like 'u', 'ku', 'su', etc., such as 'kaku' (to write).