| Simple | Progressive | Perfect | Progressive |
| Present |
| I steepen |
| you steepen |
| he/she/it steepens |
| we steepen |
| you all steepen |
| they steepen |
|
| I am steepening |
| you are steepening |
| he/she/it is steepening |
| we are steepening |
| you all are steepening |
| they are steepening |
|
| I have steepened |
| you have steepened |
| he/she/it has steepened |
| we have steepened |
| you all have steepened |
| they have steepened |
|
| I have been steepening |
| you have been steepening |
| he/she/it has been steepening |
| we have been steepening |
| you all have been steepening |
| they have been steepening |
|
| Past |
| I steepened |
| you steepened |
| he/she/it steepened |
| we steepened |
| you all steepened |
| they steepened |
|
| I was steepening |
| you were steepening |
| he/she/it was steepening |
| we were steepening |
| you all were steepening |
| they were steepening |
|
| I had steepened |
| you had steepened |
| he/she/it had steepened |
| we had steepened |
| you all had steepened |
| they had steepened |
|
| I had been steepening |
| you had been steepening |
| he/she/it had been steepening |
| we had been steepening |
| you all had been steepening |
| they had been steepening |
|
| Future |
| I will steepen |
| you will steepen |
| he/she/it will steepen |
| we will steepen |
| you all will steepen |
| they will steepen |
|
| I will be steepening |
| you will be steepening |
| he/she/it will be steepening |
| we are steepening |
| you all will be steepening |
| they will be steepening |
|
| I will have steepened |
| you will have steepened |
| he/she/it will have steepened |
| we will have steepened |
| you all will have steepened |
| they will have steepened |
|
| I will have been steepening |
| you will have been steepening |
| he/she/it will have been steepening |
| we will have been steepening |
| you all will have been steepening |
| they will have been steepening |
|
