| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | perk up | perk up | perks up | perk up | perk up | perk up |
| Present continuous | am perking up | are perking up | is perking up | are perking up | are perking up | are perking up |
| Simple past | perked up | perked up | perked up | perked up | perked up | perked up |
| Past continuous | was perking up | were perking up | was perking up | were perking up | were perking up | were perking up |
| Simple future | will perk up | will perk up | will perk up | will perk up | will perk up | will perk up |
| Future continuous | will be perking up | will be perking up | will be perking up | will be perking up | will be perking up | will be perking up |
| Present perfect | have perked up | have perked up | has perked up | have perked up | have perked up | have perked up |
| Present perfect continuous | have been perking up | have been perking up | has been perking up | have been perking up | have been perking up | have been perking up |
| Present continuous | am perking up | are perking up | is perking up | are perking up | are perking up | are perking up |
| Past perfect | had perked up | had perked up | had perked up | had perked up | had perked up | had perked up |
| Past perfect continuous | had been perking up | had been perking up | had been perking up | had been perking up | had been perking up | had been perking up |
| Future perfect | will have perked up | will have perked up | will have perked up | will have perked up | will have perked up | will have perked up |
| Future perfect continuous | will have been perking up | will have been perking up | will have been perking up | will have been perking up | will have been perking up | will have been perking up |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't perk up | don't perk up | doesn't perk up | don't perk up | don't perk up | don't perk up |
| Present continuous | am not perking up | are not perking up | is not perking up | are not perking up | are not perking up | are not perking up |
| Simple past | didn't perk up | didn't perk up | didn't perk up | didn't perk up | didn't perk up | didn't perk up |
| Past continuous | was not perking up | were not perking up | was not perking up | were not perking up | were not perking up | were not perking up |
| Simple future | won't perk up | won't perk up | won't perk up | won't perk up | won't perk up | won't perk up |
| Future continuous | will not be perking up | will not be perking up | will not be perking up | will not be perking up | will not be perking up | will not be perking up |
| Present perfect | have not perked up | have not perked up | has not perked up | have not perked up | have not perked up | have not perked up |
| Present perfect continuous | have not been perking up | have not been perking up | has not been perking up | have not been perking up | have not been perking up | have not been perking up |
| Present continuous | am not perking up | are not perking up | is not perking up | are not perking up | are not perking up | are not perking up |
| Past perfect | had not perked up | had not perked up | had not perked up | had not perked up | had not perked up | had not perked up |
| Past perfect continuous | had not been perking up | had not been perking up | had not been perking up | had not been perking up | had not been perking up | had not been perking up |
| Future perfect | will have not perked up | will have not perked up | will have not perked up | will have not perked up | will have not perked up | will have not perked up |
| Future perfect continuous | will have not been perking up | will have not been perking up | will have not been perking up | will have not been perking up | will have not been perking up | will have not been perking up |