| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | fasten | fasten | fastens | fasten | fasten | fasten |
| Present continuous | am fastening | are fastening | is fastening | are fastening | are fastening | are fastening |
| Simple past | fastened | fastened | fastened | fastened | fastened | fastened |
| Past continuous | was fastening | were fastening | was fastening | were fastening | were fastening | were fastening |
| Simple future | will fasten | will fasten | will fasten | will fasten | will fasten | will fasten |
| Future continuous | will be fastening | will be fastening | will be fastening | will be fastening | will be fastening | will be fastening |
| Present perfect | have fastened | have fastened | has fastened | have fastened | have fastened | have fastened |
| Present perfect continuous | have been fastening | have been fastening | has been fastening | have been fastening | have been fastening | have been fastening |
| Present continuous | am fastening | are fastening | is fastening | are fastening | are fastening | are fastening |
| Past perfect | had fastened | had fastened | had fastened | had fastened | had fastened | had fastened |
| Past perfect continuous | had been fastening | had been fastening | had been fastening | had been fastening | had been fastening | had been fastening |
| Future perfect | will have fastened | will have fastened | will have fastened | will have fastened | will have fastened | will have fastened |
| Future perfect continuous | will have been fastening | will have been fastening | will have been fastening | will have been fastening | will have been fastening | will have been fastening |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't fasten | don't fasten | doesn't fasten | don't fasten | don't fasten | don't fasten |
| Present continuous | am not fastening | are not fastening | is not fastening | are not fastening | are not fastening | are not fastening |
| Simple past | didn't fasten | didn't fasten | didn't fasten | didn't fasten | didn't fasten | didn't fasten |
| Past continuous | was not fastening | were not fastening | was not fastening | were not fastening | were not fastening | were not fastening |
| Simple future | won't fasten | won't fasten | won't fasten | won't fasten | won't fasten | won't fasten |
| Future continuous | will not be fastening | will not be fastening | will not be fastening | will not be fastening | will not be fastening | will not be fastening |
| Present perfect | have not fastened | have not fastened | has not fastened | have not fastened | have not fastened | have not fastened |
| Present perfect continuous | have not been fastening | have not been fastening | has not been fastening | have not been fastening | have not been fastening | have not been fastening |
| Present continuous | am not fastening | are not fastening | is not fastening | are not fastening | are not fastening | are not fastening |
| Past perfect | had not fastened | had not fastened | had not fastened | had not fastened | had not fastened | had not fastened |
| Past perfect continuous | had not been fastening | had not been fastening | had not been fastening | had not been fastening | had not been fastening | had not been fastening |
| Future perfect | will have not fastened | will have not fastened | will have not fastened | will have not fastened | will have not fastened | will have not fastened |
| Future perfect continuous | will have not been fastening | will have not been fastening | will have not been fastening | will have not been fastening | will have not been fastening | will have not been fastening |