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