| Simple | Progressive | Perfect | Progressive |
| Present |
| I reduce |
| you reduce |
| he/she/it reduces |
| we reduce |
| you all reduce |
| they reduce |
|
| I am reducing |
| you are reducing |
| he/she/it is reducing |
| we are reducing |
| you all are reducing |
| they are reducing |
|
| I have reduced |
| you have reduced |
| he/she/it has reduced |
| we have reduced |
| you all have reduced |
| they have reduced |
|
| I have been reducing |
| you have been reducing |
| he/she/it has been reducing |
| we have been reducing |
| you all have been reducing |
| they have been reducing |
|
| Past |
| I reduced |
| you reduced |
| he/she/it reduced |
| we reduced |
| you all reduced |
| they reduced |
|
| I was reducing |
| you were reducing |
| he/she/it was reducing |
| we were reducing |
| you all were reducing |
| they were reducing |
|
| I had reduced |
| you had reduced |
| he/she/it had reduced |
| we had reduced |
| you all had reduced |
| they had reduced |
|
| I had been reducing |
| you had been reducing |
| he/she/it had been reducing |
| we had been reducing |
| you all had been reducing |
| they had been reducing |
|
| Future |
| I will reduce |
| you will reduce |
| he/she/it will reduce |
| we will reduce |
| you all will reduce |
| they will reduce |
|
| I will be reducing |
| you will be reducing |
| he/she/it will be reducing |
| we are reducing |
| you all will be reducing |
| they will be reducing |
|
| I will have reduced |
| you will have reduced |
| he/she/it will have reduced |
| we will have reduced |
| you all will have reduced |
| they will have reduced |
|
| I will have been reducing |
| you will have been reducing |
| he/she/it will have been reducing |
| we will have been reducing |
| you all will have been reducing |
| they will have been reducing |
|
