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