| Present "pioneer" | I | pioneer | |
| Present Continuous "pioneer" | I | am pioneering | |
| Simple past "pioneer" | I | pioneered | |
| Past Continuous "pioneer" | I | was pioneering | |
| Present perfect "pioneer" | I | have pioneered | |
| Present perfect continuous "pioneer" | I | have been pioneering | |
| Past perfect "pioneer" | I | had pioneered | |
| Past perfect continuous "pioneer" | I | had been pioneering | |
| Future "pioneer" | I | will pioneer | |
| Future continuous "pioneer" | I | will be pioneering | |
| Future perfect "pioneer" | I | will have pioneered | |
| Future perfect continuous "pioneer" | I | will have been pioneering |