
Regular verb: thunder - thundered - thundered
Simple form | V-ing form |
| - - it'd thunder - - - | - - it'd be thundering - - - |
Perfect | V-ing perfect |
| - - it should've thundered - - - | - - it should've been thundering - - - |
Simple form | V-ing form |
| - - it shouldn't thunder - - - | - - it shouldn't be thundering - - - |
Perfect | V-ing perfect |
| - - it shouldn't have thundered - - - | - - it shouldn't 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 |
| - - shouldn't it thunder? - - - | - - shouldn't it be thundering? - - - |
Perfect | V-ing perfect |
| - - shouldn't it have thundered? - - - | - - shouldn't it have been thundering? - - - |