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