| Present "discern" | I | discern | |
| Present Continuous "discern" | I | am discerning | |
| Simple past "discern" | I | discerned | |
| Past Continuous "discern" | I | was discerning | |
| Present perfect "discern" | I | have discerned | |
| Present perfect continuous "discern" | I | have been discerning | |
| Past perfect "discern" | I | had discerned | |
| Past perfect continuous "discern" | I | had been discerning | |
| Future "discern" | I | will discern | |
| Future continuous "discern" | I | will be discerning | |
| Future perfect "discern" | I | will have discerned | |
| Future perfect continuous "discern" | I | will have been discerning |