| Simple | Progressive | Perfect | Progressive |
| Present |
| I antedate |
| you antedate |
| he/she/it antedates |
| we antedate |
| you all antedate |
| they antedate |
|
| I am antedating |
| you are antedating |
| he/she/it is antedating |
| we are antedating |
| you all are antedating |
| they are antedating |
|
| I have antedated |
| you have antedated |
| he/she/it has antedated |
| we have antedated |
| you all have antedated |
| they have antedated |
|
| I have been antedating |
| you have been antedating |
| he/she/it has been antedating |
| we have been antedating |
| you all have been antedating |
| they have been antedating |
|
| Past |
| I antedated |
| you antedated |
| he/she/it antedated |
| we antedated |
| you all antedated |
| they antedated |
|
| I was antedating |
| you were antedating |
| he/she/it was antedating |
| we were antedating |
| you all were antedating |
| they were antedating |
|
| I had antedated |
| you had antedated |
| he/she/it had antedated |
| we had antedated |
| you all had antedated |
| they had antedated |
|
| I had been antedating |
| you had been antedating |
| he/she/it had been antedating |
| we had been antedating |
| you all had been antedating |
| they had been antedating |
|
| Future |
| I will antedate |
| you will antedate |
| he/she/it will antedate |
| we will antedate |
| you all will antedate |
| they will antedate |
|
| I will be antedating |
| you will be antedating |
| he/she/it will be antedating |
| we are antedating |
| you all will be antedating |
| they will be antedating |
|
| I will have antedated |
| you will have antedated |
| he/she/it will have antedated |
| we will have antedated |
| you all will have antedated |
| they will have antedated |
|
| I will have been antedating |
| you will have been antedating |
| he/she/it will have been antedating |
| we will have been antedating |
| you all will have been antedating |
| they will have been antedating |
|
