| Present "begin" | I | begin | |
| Present Continuous "begin" | I | am beginning | |
| Simple past "begin" | I | began | |
| Past Continuous "begin" | I | was beginning | |
| Present perfect "begin" | I | have begun | |
| Present perfect continuous "begin" | I | have been beginning | |
| Past perfect "begin" | I | had begun | |
| Past perfect continuous "begin" | I | had been beginning | |
| Future "begin" | I | will begin | |
| Future continuous "begin" | I | will be beginning | |
| Future perfect "begin" | I | will have begun | |
| Future perfect continuous "begin" | I | will have been beginning |