| Simple | Progressive | Perfect | Progressive |
| Present |
| I shorten |
| you shorten |
| he/she/it shortens |
| we shorten |
| you all shorten |
| they shorten |
|
| I am shortening |
| you are shortening |
| he/she/it is shortening |
| we are shortening |
| you all are shortening |
| they are shortening |
|
| I have shortened |
| you have shortened |
| he/she/it has shortened |
| we have shortened |
| you all have shortened |
| they have shortened |
|
| I have been shortening |
| you have been shortening |
| he/she/it has been shortening |
| we have been shortening |
| you all have been shortening |
| they have been shortening |
|
| Past |
| I shortened |
| you shortened |
| he/she/it shortened |
| we shortened |
| you all shortened |
| they shortened |
|
| I was shortening |
| you were shortening |
| he/she/it was shortening |
| we were shortening |
| you all were shortening |
| they were shortening |
|
| I had shortened |
| you had shortened |
| he/she/it had shortened |
| we had shortened |
| you all had shortened |
| they had shortened |
|
| I had been shortening |
| you had been shortening |
| he/she/it had been shortening |
| we had been shortening |
| you all had been shortening |
| they had been shortening |
|
| Future |
| I will shorten |
| you will shorten |
| he/she/it will shorten |
| we will shorten |
| you all will shorten |
| they will shorten |
|
| I will be shortening |
| you will be shortening |
| he/she/it will be shortening |
| we are shortening |
| you all will be shortening |
| they will be shortening |
|
| I will have shortened |
| you will have shortened |
| he/she/it will have shortened |
| we will have shortened |
| you all will have shortened |
| they will have shortened |
|
| I will have been shortening |
| you will have been shortening |
| he/she/it will have been shortening |
| we will have been shortening |
| you all will have been shortening |
| they will have been shortening |
|
