| Yksikön ensimmäinen persoona | Yksikön toinen persoona | Yksikön kolmas persoona | Monikon ensimmäinen persoona | Monikon toinen persoona | Monikon kolmas persoona | |
|---|---|---|---|---|---|---|
| Simple present | toughen | toughen | toughens | toughen | toughen | toughen |
| Present continuous | am toughening | are toughening | is toughening | are toughening | are toughening | are toughening |
| Simple past | toughened | toughened | toughened | toughened | toughened | toughened |
| Simple past | was toughening | were toughening | was toughening | were toughening | were toughening | were toughening |
| Simple future | will toughen | will toughen | will toughen | will toughen | will toughen | will toughen |
| Future continuous | will be toughening | will be toughening | will be toughening | will be toughening | will be toughening | will be toughening |
| Present perfect | have toughened | have toughened | has toughened | have toughened | have toughened | have toughened |
| Present perfect continuous | have been toughening | have been toughening | has been toughening | have been toughening | have been toughening | have been toughening |
| Past perfect | had toughened | had toughened | had toughened | had toughened | had toughened | had toughened |
| Past perfect continuous | had been toughening | had been toughening | had been toughening | had been toughening | had been toughening | had been toughening |
| Future perfect | will have toughened | will have toughened | will have toughened | will have toughened | will have toughened | will have toughened |
| Future perfect continuous | will have been toughening | will have been toughening | will have been toughening | will have been toughening | will have been toughening | will have been toughening |
| Yksikön ensimmäinen persoona | Yksikön toinen persoona | Yksikön kolmas persoona | Monikon ensimmäinen persoona | Monikon toinen persoona | Monikon kolmas persoona | |
|---|---|---|---|---|---|---|
| Simple present | don't toughen | don't toughen | doesn't toughen | don't toughen | don't toughen | don't toughen |
| Present continuous | am not toughening | are not toughening | is not toughening | are not toughening | are not toughening | are not toughening |
| Simple past | didn't toughen | didn't toughen | didn't toughen | didn't toughen | didn't toughen | didn't toughen |
| Simple past | was not toughening | were not toughening | was not toughening | were not toughening | were not toughening | were not toughening |
| Simple future | won't toughen | won't toughen | won't toughen | won't toughen | won't toughen | won't toughen |
| Future continuous | will not be toughening | will not be toughening | will not be toughening | will not be toughening | will not be toughening | will not be toughening |
| Present perfect | have not toughened | have not toughened | has not toughened | have not toughened | have not toughened | have not toughened |
| Present perfect continuous | have not been toughening | have not been toughening | has not been toughening | have not been toughening | have not been toughening | have not been toughening |
| Past perfect | had not toughened | had not toughened | had not toughened | had not toughened | had not toughened | had not toughened |
| Past perfect continuous | had not been toughening | had not been toughening | had not been toughening | had not been toughening | had not been toughening | had not been toughening |
| Future perfect | will not have toughened | will not have toughened | will not have toughened | will not have toughened | will not have toughened | will not have toughened |
| Future perfect continuous | will not have been toughening | will not have been toughening | will not have been toughening | will not have been toughening | will not have been toughening | will not have been toughening |