| I | stop up |
|---|---|
| you | stop up |
| he/she/it | stops up |
| we | stop up |
| you | stop up |
| they | stop up |
| I | stopped up |
|---|---|
| you | stopped up |
| he/she/it | stopped up |
| we | stopped up |
| you | stopped up |
| they | stopped up |
| I | have | stopped up |
|---|---|---|
| you | have | stopped up |
| he/she/it | has | stopped up |
| we | have | stopped up |
| you | have | stopped up |
| they | have | stopped up |
| I | had | stopped up |
|---|---|---|
| you | had | stopped up |
| he/she/it | had | stopped up |
| we | had | stopped up |
| you | had | stopped up |
| they | had | stopped up |