| Simple | Progressive | Perfect | Progressive |
| Present |
| I stratify |
| you stratify |
| he/she/it stratifies |
| we stratify |
| you all stratify |
| they stratify |
|
| I am stratifying |
| you are stratifying |
| he/she/it is stratifying |
| we are stratifying |
| you all are stratifying |
| they are stratifying |
|
| I have stratified |
| you have stratified |
| he/she/it has stratified |
| we have stratified |
| you all have stratified |
| they have stratified |
|
| I have been stratifying |
| you have been stratifying |
| he/she/it has been stratifying |
| we have been stratifying |
| you all have been stratifying |
| they have been stratifying |
|
| Past |
| I stratified |
| you stratified |
| he/she/it stratified |
| we stratified |
| you all stratified |
| they stratified |
|
| I was stratifying |
| you were stratifying |
| he/she/it was stratifying |
| we were stratifying |
| you all were stratifying |
| they were stratifying |
|
| I had stratified |
| you had stratified |
| he/she/it had stratified |
| we had stratified |
| you all had stratified |
| they had stratified |
|
| I had been stratifying |
| you had been stratifying |
| he/she/it had been stratifying |
| we had been stratifying |
| you all had been stratifying |
| they had been stratifying |
|
| Future |
| I will stratify |
| you will stratify |
| he/she/it will stratify |
| we will stratify |
| you all will stratify |
| they will stratify |
|
| I will be stratifying |
| you will be stratifying |
| he/she/it will be stratifying |
| we are stratifying |
| you all will be stratifying |
| they will be stratifying |
|
| I will have stratified |
| you will have stratified |
| he/she/it will have stratified |
| we will have stratified |
| you all will have stratified |
| they will have stratified |
|
| I will have been stratifying |
| you will have been stratifying |
| he/she/it will have been stratifying |
| we will have been stratifying |
| you all will have been stratifying |
| they will have been stratifying |
|
