| Simple | Progressive | Perfect | Progressive |
| Present |
| I interlock |
| you interlock |
| he/she/it interlocks |
| we interlock |
| you all interlock |
| they interlock |
|
| I am interlocking |
| you are interlocking |
| he/she/it is interlocking |
| we are interlocking |
| you all are interlocking |
| they are interlocking |
|
| I have interlocked |
| you have interlocked |
| he/she/it has interlocked |
| we have interlocked |
| you all have interlocked |
| they have interlocked |
|
| I have been interlocking |
| you have been interlocking |
| he/she/it has been interlocking |
| we have been interlocking |
| you all have been interlocking |
| they have been interlocking |
|
| Past |
| I interlocked |
| you interlocked |
| he/she/it interlocked |
| we interlocked |
| you all interlocked |
| they interlocked |
|
| I was interlocking |
| you were interlocking |
| he/she/it was interlocking |
| we were interlocking |
| you all were interlocking |
| they were interlocking |
|
| I had interlocked |
| you had interlocked |
| he/she/it had interlocked |
| we had interlocked |
| you all had interlocked |
| they had interlocked |
|
| I had been interlocking |
| you had been interlocking |
| he/she/it had been interlocking |
| we had been interlocking |
| you all had been interlocking |
| they had been interlocking |
|
| Future |
| I will interlock |
| you will interlock |
| he/she/it will interlock |
| we will interlock |
| you all will interlock |
| they will interlock |
|
| I will be interlocking |
| you will be interlocking |
| he/she/it will be interlocking |
| we are interlocking |
| you all will be interlocking |
| they will be interlocking |
|
| I will have interlocked |
| you will have interlocked |
| he/she/it will have interlocked |
| we will have interlocked |
| you all will have interlocked |
| they will have interlocked |
|
| I will have been interlocking |
| you will have been interlocking |
| he/she/it will have been interlocking |
| we will have been interlocking |
| you all will have been interlocking |
| they will have been interlocking |
|
