I'd be marvelling you'd be marvelling he'd be marvelling we'd be marvelling you'd be marvelling they'd be marvelling
Perfect
I should've marvelled you should've marvelled he should've marvelled we should've marvelled you should've marvelled they should've marvelled
V-ing perfect
I should've been marvelling you should've been marvelling he should've been marvelling we should've been marvelling you should've been marvelling they should've been marvelling
Negation
Simple form
I shouldn't marvel you shouldn't marvel he shouldn't marvel we shouldn't marvel you shouldn't marvel they shouldn't marvel
V-ing form
I shouldn't be marvelling you shouldn't be marvelling he shouldn't be marvelling we shouldn't be marvelling you shouldn't be marvelling they shouldn't be marvelling
Perfect
I shouldn't have marvelled you shouldn't have marvelled he shouldn't have marvelled we shouldn't have marvelled you shouldn't have marvelled they shouldn't have marvelled
V-ing perfect
I shouldn't have been marvelling you shouldn't have been marvelling he shouldn't have been marvelling we shouldn't have been marvelling you shouldn't have been marvelling they shouldn't have been marvelling
Interrogative form
Simple form
should I marvel? should you marvel? should he marvel? should we marvel? should you marvel? should they marvel?
V-ing form
should I be marvelling? should you be marvelling? should he be marvelling? should we be marvelling? should you be marvelling? should they be marvelling?
Perfect
should I have marvelled? should you have marvelled? should he have marvelled? should we have marvelled? should you have marvelled? should they have marvelled?
V-ing perfect
should I have been marvelling? should you have been marvelling? should he have been marvelling? should we have been marvelling? should you have been marvelling? should they have been marvelling?
Interro-negative form
Simple form
shouldn't I marvel? shouldn't you marvel? shouldn't he marvel? shouldn't we marvel? shouldn't you marvel? shouldn't they marvel?
V-ing form
shouldn't I be marvelling? shouldn't you be marvelling? shouldn't he be marvelling? shouldn't we be marvelling? shouldn't you be marvelling? shouldn't they be marvelling?
Perfect
shouldn't I have marvelled? shouldn't you have marvelled? shouldn't he have marvelled? shouldn't we have marvelled? shouldn't you have marvelled? shouldn't they have marvelled?
V-ing perfect
shouldn't I have been marvelling? shouldn't you have been marvelling? shouldn't he have been marvelling? shouldn't we have been marvelling? shouldn't you have been marvelling? shouldn't they have been marvelling?