| Simple | Progressive | Perfect | Progressive |
| Present |
| I diagnose |
| you diagnose |
| he/she/it diagnoses |
| we diagnose |
| you all diagnose |
| they diagnose |
|
| I am diagnosing |
| you are diagnosing |
| he/she/it is diagnosing |
| we are diagnosing |
| you all are diagnosing |
| they are diagnosing |
|
| I have diagnosed |
| you have diagnosed |
| he/she/it has diagnosed |
| we have diagnosed |
| you all have diagnosed |
| they have diagnosed |
|
| I have been diagnosing |
| you have been diagnosing |
| he/she/it has been diagnosing |
| we have been diagnosing |
| you all have been diagnosing |
| they have been diagnosing |
|
| Past |
| I diagnosed |
| you diagnosed |
| he/she/it diagnosed |
| we diagnosed |
| you all diagnosed |
| they diagnosed |
|
| I was diagnosing |
| you were diagnosing |
| he/she/it was diagnosing |
| we were diagnosing |
| you all were diagnosing |
| they were diagnosing |
|
| I had diagnosed |
| you had diagnosed |
| he/she/it had diagnosed |
| we had diagnosed |
| you all had diagnosed |
| they had diagnosed |
|
| I had been diagnosing |
| you had been diagnosing |
| he/she/it had been diagnosing |
| we had been diagnosing |
| you all had been diagnosing |
| they had been diagnosing |
|
| Future |
| I will diagnose |
| you will diagnose |
| he/she/it will diagnose |
| we will diagnose |
| you all will diagnose |
| they will diagnose |
|
| I will be diagnosing |
| you will be diagnosing |
| he/she/it will be diagnosing |
| we are diagnosing |
| you all will be diagnosing |
| they will be diagnosing |
|
| I will have diagnosed |
| you will have diagnosed |
| he/she/it will have diagnosed |
| we will have diagnosed |
| you all will have diagnosed |
| they will have diagnosed |
|
| I will have been diagnosing |
| you will have been diagnosing |
| he/she/it will have been diagnosing |
| we will have been diagnosing |
| you all will have been diagnosing |
| they will have been diagnosing |
|
