| I | substantiate |
| you | substantiate |
| he/she/it | substantiates |
| we | substantiate |
| you | substantiate |
| they | substantiate |
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| you | have substantiated |
| he/she/it | has substantiated |
| we | have substantiated |
| you | have substantiated |
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| you | substantiated |
| he/she/it | substantiated |
| we | substantiated |
| you | substantiated |
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| you | had substantiated |
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| we | had substantiated |
| you | had substantiated |
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| you | will substantiate |
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| you | will have substantiated |
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| you | have been substantiating |
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| you | had been substantiating |
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