| Simple | Progressive | Perfect | Progressive |
| Present |
| I sour |
| you sour |
| he/she/it sours |
| we sour |
| you all sour |
| they sour |
|
| I am souring |
| you are souring |
| he/she/it is souring |
| we are souring |
| you all are souring |
| they are souring |
|
| I have soured |
| you have soured |
| he/she/it has soured |
| we have soured |
| you all have soured |
| they have soured |
|
| I have been souring |
| you have been souring |
| he/she/it has been souring |
| we have been souring |
| you all have been souring |
| they have been souring |
|
| Past |
| I soured |
| you soured |
| he/she/it soured |
| we soured |
| you all soured |
| they soured |
|
| I was souring |
| you were souring |
| he/she/it was souring |
| we were souring |
| you all were souring |
| they were souring |
|
| I had soured |
| you had soured |
| he/she/it had soured |
| we had soured |
| you all had soured |
| they had soured |
|
| I had been souring |
| you had been souring |
| he/she/it had been souring |
| we had been souring |
| you all had been souring |
| they had been souring |
|
| Future |
| I will sour |
| you will sour |
| he/she/it will sour |
| we will sour |
| you all will sour |
| they will sour |
|
| I will be souring |
| you will be souring |
| he/she/it will be souring |
| we are souring |
| you all will be souring |
| they will be souring |
|
| I will have soured |
| you will have soured |
| he/she/it will have soured |
| we will have soured |
| you all will have soured |
| they will have soured |
|
| I will have been souring |
| you will have been souring |
| he/she/it will have been souring |
| we will have been souring |
| you all will have been souring |
| they will have been souring |
|
