| Einfach | Progressiv | Perfekt | Progressiv |
| Präsens |
| I fortify |
| you fortify |
| he/she/it fortifies |
| we fortify |
| you all fortify |
| they fortify |
|
| I am fortifying |
| you are fortifying |
| he/she/it is fortifying |
| we are fortifying |
| you all are fortifying |
| they are fortifying |
|
| I have fortified |
| you have fortified |
| he/she/it has fortified |
| we have fortified |
| you all have fortified |
| they have fortified |
|
| I have been fortifying |
| you have been fortifying |
| he/she/it has been fortifying |
| we have been fortifying |
| you all have been fortifying |
| they have been fortifying |
|
| Präteritum |
| I fortified |
| you fortified |
| he/she/it fortified |
| we fortified |
| you all fortified |
| they fortified |
|
| I was fortifying |
| you were fortifying |
| he/she/it was fortifying |
| we were fortifying |
| you all were fortifying |
| they were fortifying |
|
| I had fortified |
| you had fortified |
| he/she/it had fortified |
| we had fortified |
| you all had fortified |
| they had fortified |
|
| I had been fortifying |
| you had been fortifying |
| he/she/it had been fortifying |
| we had been fortifying |
| you all had been fortifying |
| they had been fortifying |
|
| Futur |
| I will fortify |
| you will fortify |
| he/she/it will fortify |
| we will fortify |
| you all will fortify |
| they will fortify |
|
| I will be fortifying |
| you will be fortifying |
| he/she/it will be fortifying |
| we are fortifying |
| you all will be fortifying |
| they will be fortifying |
|
| I will have fortified |
| you will have fortified |
| he/she/it will have fortified |
| we will have fortified |
| you all will have fortified |
| they will have fortified |
|
| I will have been fortifying |
| you will have been fortifying |
| he/she/it will have been fortifying |
| we will have been fortifying |
| you all will have been fortifying |
| they will have been fortifying |
|
