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