| Einfach | Progressiv | Perfekt | Progressiv |
| Präsens |
| I intervene |
| you intervene |
| he/she/it intervenes |
| we intervene |
| you all intervene |
| they intervene |
|
| I am intervening |
| you are intervening |
| he/she/it is intervening |
| we are intervening |
| you all are intervening |
| they are intervening |
|
| I have intervened |
| you have intervened |
| he/she/it has intervened |
| we have intervened |
| you all have intervened |
| they have intervened |
|
| I have been intervening |
| you have been intervening |
| he/she/it has been intervening |
| we have been intervening |
| you all have been intervening |
| they have been intervening |
|
| Präteritum |
| I intervened |
| you intervened |
| he/she/it intervened |
| we intervened |
| you all intervened |
| they intervened |
|
| I was intervening |
| you were intervening |
| he/she/it was intervening |
| we were intervening |
| you all were intervening |
| they were intervening |
|
| I had intervened |
| you had intervened |
| he/she/it had intervened |
| we had intervened |
| you all had intervened |
| they had intervened |
|
| I had been intervening |
| you had been intervening |
| he/she/it had been intervening |
| we had been intervening |
| you all had been intervening |
| they had been intervening |
|
| Futur |
| I will intervene |
| you will intervene |
| he/she/it will intervene |
| we will intervene |
| you all will intervene |
| they will intervene |
|
| I will be intervening |
| you will be intervening |
| he/she/it will be intervening |
| we are intervening |
| you all will be intervening |
| they will be intervening |
|
| I will have intervened |
| you will have intervened |
| he/she/it will have intervened |
| we will have intervened |
| you all will have intervened |
| they will have intervened |
|
| I will have been intervening |
| you will have been intervening |
| he/she/it will have been intervening |
| we will have been intervening |
| you all will have been intervening |
| they will have been intervening |
|
