should corkscrew
Regular verb: corkscrew - corkscrewed- corkscrewed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd corkscrew
you'd corkscrew
he'd corkscrew
we'd corkscrew
you'd corkscrew
they'd corkscrew 	I'd be corkscrewing
you'd be corkscrewing
he'd be corkscrewing
we'd be corkscrewing
you'd be corkscrewing
they'd be corkscrewing	I should've corkscrewed
you should've corkscrewed
he should've corkscrewed
we should've corkscrewed
you should've corkscrewed
they should've corkscrewed	I should've been corkscrewing
you should've been corkscrewing
he should've been corkscrewing
we should've been corkscrewing
you should've been corkscrewing
they should've been corkscrewing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't corkscrew
you shouldn't corkscrew
he shouldn't corkscrew
we shouldn't corkscrew
you shouldn't corkscrew
they shouldn't corkscrew 	I shouldn't be corkscrewing
you shouldn't be corkscrewing
he shouldn't be corkscrewing
we shouldn't be corkscrewing
you shouldn't be corkscrewing
they shouldn't be corkscrewing	I shouldn't have corkscrewed
you shouldn't have corkscrewed
he shouldn't have corkscrewed
we shouldn't have corkscrewed
you shouldn't have corkscrewed
they shouldn't have corkscrewed	I shouldn't have been corkscrewing
you shouldn't have been corkscrewing
he shouldn't have been corkscrewing
we shouldn't have been corkscrewing
you shouldn't have been corkscrewing
they shouldn't have been corkscrewing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I corkscrew?
should you corkscrew?
should he corkscrew?
should we corkscrew?
should you corkscrew?
should they corkscrew? 	should I be corkscrewing?
should you be corkscrewing?
should he be corkscrewing?
should we be corkscrewing?
should you be corkscrewing?
should they be corkscrewing? 	should I have corkscrewed?
should you have corkscrewed?
should he have corkscrewed?
should we have corkscrewed?
should you have corkscrewed?
should they have corkscrewed? 	should I have been corkscrewing?
should you have been corkscrewing?
should he have been corkscrewing?
should we have been corkscrewing?
should you have been corkscrewing?
should they have been corkscrewing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I corkscrew?
shouldn't you corkscrew?
shouldn't he corkscrew?
shouldn't we corkscrew?
shouldn't you corkscrew?
shouldn't they corkscrew? 	shouldn't I be corkscrewing?
shouldn't you be corkscrewing?
shouldn't he be corkscrewing?
shouldn't we be corkscrewing?
shouldn't you be corkscrewing?
shouldn't they be corkscrewing? 	shouldn't I have corkscrewed?
shouldn't you have corkscrewed?
shouldn't he have corkscrewed?
shouldn't we have corkscrewed?
shouldn't you have corkscrewed?
shouldn't they have corkscrewed? 	shouldn't I have been corkscrewing?
shouldn't you have been corkscrewing?
shouldn't he have been corkscrewing?
shouldn't we have been corkscrewing?
shouldn't you have been corkscrewing?
shouldn't they have been corkscrewing?