| I | fasten |
|---|---|
| you | fasten |
| he/she/it | fastens |
| we | fasten |
| you | fasten |
| they | fasten |
| I | fastened |
|---|---|
| you | fastened |
| he/she/it | fastened |
| we | fastened |
| you | fastened |
| they | fastened |
| I | have | fastened |
|---|---|---|
| you | have | fastened |
| he/she/it | has | fastened |
| we | have | fastened |
| you | have | fastened |
| they | have | fastened |
| I | had | fastened |
|---|---|---|
| you | had | fastened |
| he/she/it | had | fastened |
| we | had | fastened |
| you | had | fastened |
| they | had | fastened |