| Present "lumber" | I | lumber | |
| Present Continuous "lumber" | I | am lumbering | |
| Simple past "lumber" | I | lumbered | |
| Past Continuous "lumber" | I | was lumbering | |
| Present perfect "lumber" | I | have lumbered | |
| Present perfect continuous "lumber" | I | have been lumbering | |
| Past perfect "lumber" | I | had lumbered | |
| Past perfect continuous "lumber" | I | had been lumbering | |
| Future "lumber" | I | will lumber | |
| Future continuous "lumber" | I | will be lumbering | |
| Future perfect "lumber" | I | will have lumbered | |
| Future perfect continuous "lumber" | I | will have been lumbering |