Regular verb: seem - seemed - seemed
Simple form | V-ing form |
- - it must seem - - - | - - it must be seeming - - - |
Perfect | V-ing perfect |
- - it must have seemed - - - | - - it must have been seeming - - - |
Simple form | V-ing form |
- - it mustn't seem - - - | - - it mustn't be seeming - - - |
Perfect | V-ing perfect |
- - it mustn't have seemed - - - | - - it mustn't have been seeming - - - |
Simple form | V-ing form |
- - must it seem? - - - | - - must it be seeming? - - - |
Perfect | V-ing perfect |
- - must it have seemed? - - - | - - must it have been seeming? - - - |
Simple form | V-ing form |
- - mustn't it seem? - - - | - - mustn't it be seeming? - - - |
Perfect | V-ing perfect |
- - mustn't it have seemed? - - - | - - mustn't it have been seeming? - - - |