| I | walk up | |
|---|---|---|
| you | walk up | |
| he/she/it | walks up | |
| we | walk up | |
| you | walk up | |
| they | walk up |
| I | walked up | |
|---|---|---|
| you | walked up | |
| he/she/it | walked up | |
| we | walked up | |
| you | walked up | |
| they | walked up |
| I | have | walked up | |
|---|---|---|---|
| you | have | walked up | |
| he/she/it | has | walked up | |
| we | have | walked up | |
| you | have | walked up | |
| they | have | walked up |
| I | had | walked up | |
|---|---|---|---|
| you | had | walked up | |
| he/she/it | had | walked up | |
| we | had | walked up | |
| you | had | walked up | |
| they | had | walked up |