| Simple | Progressive | Perfect | Progressive |
| Present |
| I shell |
| you shell |
| he/she/it shells |
| we shell |
| you all shell |
| they shell |
|
| I am shelling |
| you are shelling |
| he/she/it is shelling |
| we are shelling |
| you all are shelling |
| they are shelling |
|
| I have shelled |
| you have shelled |
| he/she/it has shelled |
| we have shelled |
| you all have shelled |
| they have shelled |
|
| I have been shelling |
| you have been shelling |
| he/she/it has been shelling |
| we have been shelling |
| you all have been shelling |
| they have been shelling |
|
| Past |
| I shelled |
| you shelled |
| he/she/it shelled |
| we shelled |
| you all shelled |
| they shelled |
|
| I was shelling |
| you were shelling |
| he/she/it was shelling |
| we were shelling |
| you all were shelling |
| they were shelling |
|
| I had shelled |
| you had shelled |
| he/she/it had shelled |
| we had shelled |
| you all had shelled |
| they had shelled |
|
| I had been shelling |
| you had been shelling |
| he/she/it had been shelling |
| we had been shelling |
| you all had been shelling |
| they had been shelling |
|
| Future |
| I will shell |
| you will shell |
| he/she/it will shell |
| we will shell |
| you all will shell |
| they will shell |
|
| I will be shelling |
| you will be shelling |
| he/she/it will be shelling |
| we are shelling |
| you all will be shelling |
| they will be shelling |
|
| I will have shelled |
| you will have shelled |
| he/she/it will have shelled |
| we will have shelled |
| you all will have shelled |
| they will have shelled |
|
| I will have been shelling |
| you will have been shelling |
| he/she/it will have been shelling |
| we will have been shelling |
| you all will have been shelling |
| they will have been shelling |
|
