| Group | Plain form | Negative form | |||||||||||||||||
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| Group I |
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| Group II |
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| suru |
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| kuru |
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| Step | Form | Description | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 |
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Stem + nonpast. Past form: Go to 1. Polite form: Go to 2. Negative form: Go to 4. |
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| 1 |
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Stem + past. |
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| 2 |
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Stem + politeness + nonpast. Past form: Go to 3. Negative form: Go to 6. |
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| 3 |
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Stem + politeness + past. |
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| 4 |
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Stem + negation + nonpast. Past form: Go to 5. Polite form: Go to 8. |
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| 5 |
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Stem + negation + past. Polite form: Go to 9. |
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| 6 |
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Stem + politeness + negation + nonpast. Past form: Go to 7. |
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| 7 |
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Stem + politeness + negation + past. |
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| 8 |
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Stem + negation + nonpast + politeness. |
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| 9 |
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Stem + negation + past + politeness. |
| Kana: | |||||||
| Romanization: | I | nu | ga | i | ru | . | |
| Structure: | noun (dog) | nominative marker | verb (exist) | ||||
| Meaning: | There is a dog. | ||||||
| Kana: | ||||||||
| Romanization: | I | nu | ga | i | na | i | . | |
| Structure: | noun (dog) | nominative marker | verb + negation (not exist) | |||||
| Meaning: | There is no dog. | |||||||
| Kana: | |||||||
| Romanization: | Ya | ma | ga | a | ru | . | |
| Structure: | noun (mountain) | nominative marker | verb (exist) | ||||
| Meaning: | There is a mountain. | ||||||
| Kana: | |||||||
| Romanization: | Ya | ma | ga | na | i | . | |
| Structure: | noun (mountain) | nominative marker | adjective (not exist) | ||||
| Meaning: | There is no mountain. | ||||||
| Step | Form | Description | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 |
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Stem (existential verb) + nonpast. Past form: Go to 1. Polite form: Go to 2. Negative form: Go to 4. |
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| 1 |
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Stem (existential verb) + past. |
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| 2 |
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Stem (existential verb) + politeness + nonpast. Past form: Go to 3. Negative form: Go to 6. |
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| 3 |
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Stem (existential verb) + politeness + past. |
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| 4 |
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Stem (nonexistential adjective) + nonpast. Past form: Go to 5. Polite form: Go to 8. |
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| 5 |
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Stem (nonexistential adjective) + past. Polite form: Go to 9. |
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| 6 |
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Stem (existential verb) + politeness + negation + nonpast. Past form: Go to 7. |
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| 7 |
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Stem (existential verb) + politeness + negation + past. |
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| 8 |
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Stem (nonexistential adjective) + nonpast + politeness. |
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| 9 |
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Stem (nonexistential adjective) + past + politeness. |
| Kana: | ||||||||||||||
| Romanization: | Yo | ko | ha | ma | wa | syu | to | de | na | i | . | |||
| Structure: | noun (Yokohama) | topic marker | noun (capital) | copula (is) | auxiliary adjective (not) | |||||||||
| Meaning: | Yokohama is not capital. | |||||||||||||
| Plain form | Negative form | |||||||||||||||||||||
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| Kana: | ||||||||||||
| Romanization: | Se | n | sô | wa | yo | ku | na | i | . | |||
| Structure: | noun (war) | topic marker | adjective (is good) | auxiliary adjective (not) | ||||||||
| Meaning: | War is not good. | |||||||||||
| 1. |
A: What did you say you'd forgotten to try in Kanazawa? B: I didn't try sushi. That's a big mistake. |
| 2. |
A: I've heard you tried sushi yesterday. Was it nice? B: I didn't try sushi. It's John who went to a sushi bar yesterday. |
| 3. |
A: You went to a Japanese restaurant, didn't you? Did you try sushi? B: No, I didn't try sushi. I had sukiyaki. |
| Kana: | ||||||||||||||||
| Romanization: | Wa | ta | si | wa | su | si | o | ta | be | na | ka | t | ta | . | ||
| Structure: | noun (I) | topic marker | noun (sushi) | accusative marker | verb + negation (didn't eat) | |||||||||||
| Kana: | ||||||||||||||||
| Romanization: | Wa | ta | si | wa | su | si | wa | ta | be | na | ka | t | ta | . | ||
| Structure: | noun (I) | topic marker | noun (sushi) | topic marker | verb + negation (didn't eat) | |||||||||||
| Kana: | |||||||||||
| Romanization: | Ri | n | go | wa | ku | da | mo | no | da | . | |
| Structure: | noun (apple) | topic marker | noun (fruit) | copula (is) | |||||||
| Meaning: | Apples are fruits. | ||||||||||
| Kana: | |||||||||||||||
| Romanization: | Ri | n | go | wa | ya | sa | i | de | wa | na | i | . | |||
| Structure: | noun (apple) | topic marker | noun (vegetable) | copula (is) | topic marker | auxiliary adjective (not) | |||||||||
| Meaning: | Apples are not vegetables. | ||||||||||||||
| Kana: | ||||||||||||||
| Romanization: | Ri | n | go | wa | ya | sa | i | zya | na | i | . | |||
| Structure: | noun (apple) | topic marker | noun (vegetable) | copula + topic marker (is) | auxiliary adjective (not) | |||||||||
| Kana: | ||||||||||||
| Romanization: | Mi | ka | n | wa | ku | ro | ku | na | i | . | ||
| Structure: | noun (orange) | topic marker | adjective (is black) | auxiliary adjective (not) | ||||||||
| Kana: | |||||||||||||
| Romanization: | Mi | ka | n | wa | ku | ro | ku | wa | na | i | . | ||
| Structure: | noun (orange) | topic marker | adjective (is black) | topic marker | auxiliary adjective (not) | ||||||||