Regular verb: thunder - thundered - thundered
Simple form | V-ing form |
- - it may thunder - - - | - - it may be thundering - - - |
Perfect | V-ing perfect |
- - it may have thundered - - - | - - it may have been thundering - - - |
Simple form | V-ing form |
- - it may not thunder - - - | - - it may not be thundering - - - |
Perfect | V-ing perfect |
- - it may not have thundered - - - | - - it may not have been thundering - - - |
Simple form | V-ing form |
- - may it thunder? - - - | - - may it be thundering? - - - |
Perfect | V-ing perfect |
- - may it have thundered? - - - | - - may it have been thundering? - - - |
Simple form | V-ing form |
- - may it not thunder? - - - | - - may it not be thundering? - - - |
Perfect | V-ing perfect |
- - may it not have thundered? - - - | - - may it not have been thundering? - - - |