| Simple | Progressive | Perfect | Progressive |
| Present |
| I countersink |
| you countersink |
| he/she/it countersinks |
| we countersink |
| you all countersink |
| they countersink |
|
| I am countersinking |
| you are countersinking |
| he/she/it is countersinking |
| we are countersinking |
| you all are countersinking |
| they are countersinking |
|
| I have countersunk |
| you have countersunk |
| he/she/it has countersunk |
| we have countersunk |
| you all have countersunk |
| they have countersunk |
|
| I have been countersinking |
| you have been countersinking |
| he/she/it has been countersinking |
| we have been countersinking |
| you all have been countersinking |
| they have been countersinking |
|
| Past |
| I countersank |
| you countersank |
| he/she/it countersank |
| we countersank |
| you all countersank |
| they countersank |
|
| I was countersinking |
| you were countersinking |
| he/she/it was countersinking |
| we were countersinking |
| you all were countersinking |
| they were countersinking |
|
| I had countersunk |
| you had countersunk |
| he/she/it had countersunk |
| we had countersunk |
| you all had countersunk |
| they had countersunk |
|
| I had been countersinking |
| you had been countersinking |
| he/she/it had been countersinking |
| we had been countersinking |
| you all had been countersinking |
| they had been countersinking |
|
| Future |
| I will countersink |
| you will countersink |
| he/she/it will countersink |
| we will countersink |
| you all will countersink |
| they will countersink |
|
| I will be countersinking |
| you will be countersinking |
| he/she/it will be countersinking |
| we are countersinking |
| you all will be countersinking |
| they will be countersinking |
|
| I will have countersunk |
| you will have countersunk |
| he/she/it will have countersunk |
| we will have countersunk |
| you all will have countersunk |
| they will have countersunk |
|
| I will have been countersinking |
| you will have been countersinking |
| he/she/it will have been countersinking |
| we will have been countersinking |
| you all will have been countersinking |
| they will have been countersinking |
|
