| Present "impinge" | I | impinge | |
| Present Continuous "impinge" | I | am impinging | |
| Simple past "impinge" | I | impinged | |
| Past Continuous "impinge" | I | was impinging | |
| Present perfect "impinge" | I | have impinged | |
| Present perfect continuous "impinge" | I | have been impinging | |
| Past perfect "impinge" | I | had impinged | |
| Past perfect continuous "impinge" | I | had been impinging | |
| Future "impinge" | I | will impinge | |
| Future continuous "impinge" | I | will be impinging | |
| Future perfect "impinge" | I | will have impinged | |
| Future perfect continuous "impinge" | I | will have been impinging |