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