| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | knock in | knock in | knocks in | knock in | knock in | knock in |
| Present continuous | am knocking in | are knocking in | is knocking in | are knocking in | are knocking in | are knocking in |
| Simple past | knocked in | knocked in | knocked in | knocked in | knocked in | knocked in |
| Past continuous | was knocking in | were knocking in | was knocking in | were knocking in | were knocking in | were knocking in |
| Simple future | will knock in | will knock in | will knock in | will knock in | will knock in | will knock in |
| Future continuous | will be knocking in | will be knocking in | will be knocking in | will be knocking in | will be knocking in | will be knocking in |
| Present perfect | have knocked in | have knocked in | has knocked in | have knocked in | have knocked in | have knocked in |
| Present perfect continuous | have been knocking in | have been knocking in | has been knocking in | have been knocking in | have been knocking in | have been knocking in |
| Past perfect | had knocked in | had knocked in | had knocked in | had knocked in | had knocked in | had knocked in |
| Past perfect continuous | had been knocking in | had been knocking in | had been knocking in | had been knocking in | had been knocking in | had been knocking in |
| Future perfect | will have knocked in | will have knocked in | will have knocked in | will have knocked in | will have knocked in | will have knocked in |
| Future perfect continuous | will have been knocking in | will have been knocking in | will have been knocking in | will have been knocking in | will have been knocking in | will have been knocking in |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't knock in | don't knock in | doesn't knock in | don't knock in | don't knock in | don't knock in |
| Present continuous | am not knocking in | are not knocking in | is not knocking in | are not knocking in | are not knocking in | are not knocking in |
| Simple past | didn't knock in | didn't knock in | didn't knock in | didn't knock in | didn't knock in | didn't knock in |
| Past continuous | was not knocking in | were not knocking in | was not knocking in | were not knocking in | were not knocking in | were not knocking in |
| Simple future | won't knock in | won't knock in | won't knock in | won't knock in | won't knock in | won't knock in |
| Future continuous | will not be knocking in | will not be knocking in | will not be knocking in | will not be knocking in | will not be knocking in | will not be knocking in |
| Present perfect | have not knocked in | have not knocked in | has not knocked in | have not knocked in | have not knocked in | have not knocked in |
| Present perfect continuous | have not been knocking in | have not been knocking in | has not been knocking in | have not been knocking in | have not been knocking in | have not been knocking in |
| Past perfect | had not knocked in | had not knocked in | had not knocked in | had not knocked in | had not knocked in | had not knocked in |
| Past perfect continuous | had not been knocking in | had not been knocking in | had not been knocking in | had not been knocking in | had not been knocking in | had not been knocking in |
| Future perfect | will not have knocked in | will not have knocked in | will not have knocked in | will not have knocked in | will not have knocked in | will not have knocked in |
| Future perfect continuous | will not have been knocking in | will not have been knocking in | will not have been knocking in | will not have been knocking in | will not have been knocking in | will not have been knocking in |