| I | substantiate | |
|---|---|---|
| you | substantiate | |
| he/she/it | substantiates | |
| we | substantiate | |
| you | substantiate | |
| they | substantiate |
| I | substantiated | |
|---|---|---|
| you | substantiated | |
| he/she/it | substantiated | |
| we | substantiated | |
| you | substantiated | |
| they | substantiated |
| I | have | substantiated | |
|---|---|---|---|
| you | have | substantiated | |
| he/she/it | has | substantiated | |
| we | have | substantiated | |
| you | have | substantiated | |
| they | have | substantiated |
| I | had | substantiated | |
|---|---|---|---|
| you | had | substantiated | |
| he/she/it | had | substantiated | |
| we | had | substantiated | |
| you | had | substantiated | |
| they | had | substantiated |
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