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