| Simple | Progressive | Perfect | Progressive |
| Present |
| I thicken |
| you thicken |
| he/she/it thickens |
| we thicken |
| you all thicken |
| they thicken |
|
| I am thickening |
| you are thickening |
| he/she/it is thickening |
| we are thickening |
| you all are thickening |
| they are thickening |
|
| I have thickened |
| you have thickened |
| he/she/it has thickened |
| we have thickened |
| you all have thickened |
| they have thickened |
|
| I have been thickening |
| you have been thickening |
| he/she/it has been thickening |
| we have been thickening |
| you all have been thickening |
| they have been thickening |
|
| Past |
| I thickened |
| you thickened |
| he/she/it thickened |
| we thickened |
| you all thickened |
| they thickened |
|
| I was thickening |
| you were thickening |
| he/she/it was thickening |
| we were thickening |
| you all were thickening |
| they were thickening |
|
| I had thickened |
| you had thickened |
| he/she/it had thickened |
| we had thickened |
| you all had thickened |
| they had thickened |
|
| I had been thickening |
| you had been thickening |
| he/she/it had been thickening |
| we had been thickening |
| you all had been thickening |
| they had been thickening |
|
| Future |
| I will thicken |
| you will thicken |
| he/she/it will thicken |
| we will thicken |
| you all will thicken |
| they will thicken |
|
| I will be thickening |
| you will be thickening |
| he/she/it will be thickening |
| we are thickening |
| you all will be thickening |
| they will be thickening |
|
| I will have thickened |
| you will have thickened |
| he/she/it will have thickened |
| we will have thickened |
| you all will have thickened |
| they will have thickened |
|
| I will have been thickening |
| you will have been thickening |
| he/she/it will have been thickening |
| we will have been thickening |
| you all will have been thickening |
| they will have been thickening |
|
