Japanese Past Tense in Plain Form -
Free Japanese Lessons: 26

In this lesson, you will get to learn Japanese past tense in plain style. In lesson 17, past tense of Japanese in Polite style has already been introduced.

You have also learned that Japanese can be divided into 2 types of speech - Polite and Plain styles (or forms) in lesson 18 - Japanese verbs.

Polite style is used when you are talking to:

  1. someone who you met for the first time.
  2. your superiors, boss, or customers, etc.
  3. someone who are not very close to you.

On the other hand, Plain style or Casual style is used when you are talking to your family members or someone who are very close to you.

You have gone through and learned many Japanese expressions in the lessons so far and most of them are using Polite style.

However, it's important for you to know how to use Plain style in order to make complicated Japanese sentences.

Japanese Past Tense for Verbs in Plain Form

Referring to the following table you have learned before in lesson 18, you have た-form (ta-form) and なかった-form (nakatta-form) for Japanese Past tense for verbs in Plain form.

た-form (ta-form) is also known as the Past affirmative of Plain form and なかった-form (nakatta-form) is also known as the Past negative of Plain form for Japanese verbs.

Polite Style Plain Style
Present Affirmative ます じしょ-form or dictionary-form
Present Negative ません ない-form or nai-form
Past Affirmative ました た-form or ta-form
Past Negative ませんでした なかった-form or nakatta-form

So how can you make Japanese past tense ta-form and nakatta-form? You can make ta-form from dictionary-form the same way you make Japanese verbs te-form.

All you have to do is to replace て (te) with た (ta). For nakatta-form, you can derive it from nai-form of Japanese verbs.

How to Make Japanese Verbs た-form (ta-form)?

Group 1 Verbs

For group 1 verbs which end up with the words う (u), つ (tsu) or る (ru), replace these words with った (tta). For those verbs which end up with the words む (mu), ぬ (nu) or ぶ (bu), replace the words with んだ (nda).

For group 1 verbs which end up with the word く (ku), change the word to いた (ita). For those which end up with the word ぐ (gu), change it to いだ (ida). And for those which end up with the word す (su), change it to した (shita).

However, there is one exception. For the Japanese verb いく (iku) which means "to go", the ta-form is いった (itta).

Group 2 Verbs

Group 2 verbs always end with the word る (ru), you just need to replace る (ru) with た (ta).

Group 3 Verbs

For group 3 verbs, the ta-form of する (suru) is した (shita) and the ta-form of くる (kuru) is きた (kita).

The following diagram shows the summary of how to change from dictionary-form to ta-form for Japanese verbs.

Japanese past tense for Verbs: change dict-form to ta-form

How to Make Japanese Verbs なかった-form (nakatta-form)?

Follow all the rules in lesson 19 on how to change dictionary-form to nai-form. After that, replace ない (nai) with なかった (nakatta) and you will get the nakatta-form for Japanese verbs.

Let's see some examples of changing Japanese verbs from dictionary-form to ta-form, nai-form and nakatta-form.

Group 1 Verbs

dict-form Meaning ta-form nai-form nakatta-form
1. ある Exist (Thing) あった ない なかった
2. かかる Hang/Take かかった かからない かからなかった
3. よむ Read よんだ よまない よまなかった
4. きく Listen/Ask きいた きかない きかなかった
5. あそぶ Play あそんだ あそばない あそばなかった
6. かう Buy かった かわない かわなかった
7. かえる Go Back かえった かえらない かえらなかった
8. のる Get On/Ride のった のらない のらなかった

Group 2 Verbs

dict-form Meaning ta-form nai-form nakatta-form
1. いる Exist (Human
/Animal)
いた いない いなかった
2. たべる Eat たべた たべない たべなかった
3. みる See みた みない みなかった
4. でる Appear/Leave でた でない でなかった
5. あげる Give/Offer/
Raise
あげた あげない あげなかった
6. くれる Be Given/Let One Have くれた くれない くれなかった

Group 3 Verbs

dict-form Meaning ta-form nai-form nakatta-form
1. くる Come/Arrive きた こない こなかった
2. する Do/Execute/
Play
した しない しなかった
3. べんきょうする Study べんきょうした べんきょうしない べんきょうしなかった
4. さんぽする Walk/Stroll さんぽした さんぽしない さんぽしなかった

Japanese Past Tense for Nouns in Plain Form

Again, Japanese past tense for nouns in Plain form is quite straight forward. You just need to append different suffixes to the noun as you can see in the following expressions...

Present Affirmative: Noun だ
Present Negative: Noun ではない
Past Affirmative: Noun だった
Past Negative: Noun ではなかった

Using noun あめ (ame - rain) as an example:

  • あめ  (ame da)
  • あめ ではない (ame dewanai)
  • あめ だった (ame datta)
  • あめ ではなかった (ame dewanakatta)

Past Tense for na-Adjectives in Plain Form

Japanese past tense for na-adjectives is exactly the same as that for Japanese nouns. Therefore you can simply use the same expressions as the following...

Present Affirmative: な-Adjective だ
Present Negative: な-Adjective ではない
Past Affirmative: な-Adjective だった
Past Negative: な-Adjective ではなかった

Using na-adjective しずか (shizuka - quiet) as an example:

  • しずか  (shizuka da)
  • しずか ではない (shizuka dewanai)
  • しずか だった (shizuka datta)
  • しずか ではなかった (shizuka dewanakatta)

Past Tense for i-Adjectives in Plain Form

Japanese past tense for i-adjectives needs some modifications to the suffixes. For past affirmative form, remove the い (i) in the い-adjective and replace it with かった (katta).

For past negative form, remove the い (i) in the い-adjective and replace it with くなかった (kunakatta).

As for the Plain form for present affirmative and present negative, remove the です (desu) which originally present in Polite style. Check with the following expressions...

Present Affirmative: い-Adjective {~い}
Present Negative: い-Adjective {~} くない
Past Affirmative: い-Adjective {~} かった
Past Negative: い-Adjective {~} くなかった

Using i-adjective ながい (nagai - long) as an example:

  • ながい (nagai)
  • なが くない (nagakunai)
  • なが かった (nagakatta)
  • なが くなかった (nagakunakatta)

You may feel very confusing with so many different forms for Japanese past tense. Give yourself some time to remember the rules and I am sure you will get the hang of it in no time.

Related Pages

Lesson 17: Past Tense of Japanese in Polite style.

Lesson 18: Japanese Verbs.

Lesson 19: Japanese Verbs Part 2 - Change dictionary-form to masu-form and nai-form.

Lesson 21: Japanese Verbs te-form.

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