| Simple | Progressive | Perfect | Progressive |
| Present |
| I caution |
| you caution |
| he/she/it cautions |
| we caution |
| you all caution |
| they caution |
|
| I am cautioning |
| you are cautioning |
| he/she/it is cautioning |
| we are cautioning |
| you all are cautioning |
| they are cautioning |
|
| I have cautioned |
| you have cautioned |
| he/she/it has cautioned |
| we have cautioned |
| you all have cautioned |
| they have cautioned |
|
| I have been cautioning |
| you have been cautioning |
| he/she/it has been cautioning |
| we have been cautioning |
| you all have been cautioning |
| they have been cautioning |
|
| Past |
| I cautioned |
| you cautioned |
| he/she/it cautioned |
| we cautioned |
| you all cautioned |
| they cautioned |
|
| I was cautioning |
| you were cautioning |
| he/she/it was cautioning |
| we were cautioning |
| you all were cautioning |
| they were cautioning |
|
| I had cautioned |
| you had cautioned |
| he/she/it had cautioned |
| we had cautioned |
| you all had cautioned |
| they had cautioned |
|
| I had been cautioning |
| you had been cautioning |
| he/she/it had been cautioning |
| we had been cautioning |
| you all had been cautioning |
| they had been cautioning |
|
| Future |
| I will caution |
| you will caution |
| he/she/it will caution |
| we will caution |
| you all will caution |
| they will caution |
|
| I will be cautioning |
| you will be cautioning |
| he/she/it will be cautioning |
| we are cautioning |
| you all will be cautioning |
| they will be cautioning |
|
| I will have cautioned |
| you will have cautioned |
| he/she/it will have cautioned |
| we will have cautioned |
| you all will have cautioned |
| they will have cautioned |
|
| I will have been cautioning |
| you will have been cautioning |
| he/she/it will have been cautioning |
| we will have been cautioning |
| you all will have been cautioning |
| they will have been cautioning |
|
