| Present "tumble" | I | tumble | |
| Present Continuous "tumble" | I | am tumbling | |
| Simple past "tumble" | I | tumbled | |
| Past Continuous "tumble" | I | was tumbling | |
| Present perfect "tumble" | I | have tumbled | |
| Present perfect continuous "tumble" | I | have been tumbling | |
| Past perfect "tumble" | I | had tumbled | |
| Past perfect continuous "tumble" | I | had been tumbling | |
| Future "tumble" | I | will tumble | |
| Future continuous "tumble" | I | will be tumbling | |
| Future perfect "tumble" | I | will have tumbled | |
| Future perfect continuous "tumble" | I | will have been tumbling |