| Present "authorize" | I | authorize | |
| Present Continuous "authorize" | I | am authorizing | |
| Simple past "authorize" | I | authorized | |
| Past Continuous "authorize" | I | was authorizing | |
| Present perfect "authorize" | I | have authorized | |
| Present perfect continuous "authorize" | I | have been authorizing | |
| Past perfect "authorize" | I | had authorized | |
| Past perfect continuous "authorize" | I | had been authorizing | |
| Future "authorize" | I | will authorize | |
| Future continuous "authorize" | I | will be authorizing | |
| Future perfect "authorize" | I | will have authorized | |
| Future perfect continuous "authorize" | I | will have been authorizing |