| Present "fell" | I | fell | |
| Present Continuous "fell" | I | am felling | |
| Simple past "fell" | I | felled | |
| Past Continuous "fell" | I | was felling | |
| Present perfect "fell" | I | have felled | |
| Present perfect continuous "fell" | I | have been felling | |
| Past perfect "fell" | I | had felled | |
| Past perfect continuous "fell" | I | had been felling | |
| Future "fell" | I | will fell | |
| Future continuous "fell" | I | will be felling | |
| Future perfect "fell" | I | will have felled | |
| Future perfect continuous "fell" | I | will have been felling |