| Simple | Progressive | Perfect | Progressive |
| Present |
| I preface |
| you preface |
| he/she/it prefaces |
| we preface |
| you all preface |
| they preface |
|
| I am prefacing |
| you are prefacing |
| he/she/it is prefacing |
| we are prefacing |
| you all are prefacing |
| they are prefacing |
|
| I have prefaced |
| you have prefaced |
| he/she/it has prefaced |
| we have prefaced |
| you all have prefaced |
| they have prefaced |
|
| I have been prefacing |
| you have been prefacing |
| he/she/it has been prefacing |
| we have been prefacing |
| you all have been prefacing |
| they have been prefacing |
|
| Past |
| I prefaced |
| you prefaced |
| he/she/it prefaced |
| we prefaced |
| you all prefaced |
| they prefaced |
|
| I was prefacing |
| you were prefacing |
| he/she/it was prefacing |
| we were prefacing |
| you all were prefacing |
| they were prefacing |
|
| I had prefaced |
| you had prefaced |
| he/she/it had prefaced |
| we had prefaced |
| you all had prefaced |
| they had prefaced |
|
| I had been prefacing |
| you had been prefacing |
| he/she/it had been prefacing |
| we had been prefacing |
| you all had been prefacing |
| they had been prefacing |
|
| Future |
| I will preface |
| you will preface |
| he/she/it will preface |
| we will preface |
| you all will preface |
| they will preface |
|
| I will be prefacing |
| you will be prefacing |
| he/she/it will be prefacing |
| we are prefacing |
| you all will be prefacing |
| they will be prefacing |
|
| I will have prefaced |
| you will have prefaced |
| he/she/it will have prefaced |
| we will have prefaced |
| you all will have prefaced |
| they will have prefaced |
|
| I will have been prefacing |
| you will have been prefacing |
| he/she/it will have been prefacing |
| we will have been prefacing |
| you all will have been prefacing |
| they will have been prefacing |
|
