| I | underestimate | |
|---|---|---|
| you | underestimate | |
| he/she/it | underestimates | |
| we | underestimate | |
| you | underestimate | |
| they | underestimate |
| I | underestimated | |
|---|---|---|
| you | underestimated | |
| he/she/it | underestimated | |
| we | underestimated | |
| you | underestimated | |
| they | underestimated |
| I | have | underestimated | |
|---|---|---|---|
| you | have | underestimated | |
| he/she/it | has | underestimated | |
| we | have | underestimated | |
| you | have | underestimated | |
| they | have | underestimated |
| I | had | underestimated | |
|---|---|---|---|
| you | had | underestimated | |
| he/she/it | had | underestimated | |
| we | had | underestimated | |
| you | had | underestimated | |
| they | had | underestimated |