should develop
Regular verb: develop - developed- developed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd develop
you'd develop
he'd develop
we'd develop
you'd develop
they'd develop 	I'd be developing
you'd be developing
he'd be developing
we'd be developing
you'd be developing
they'd be developing	I should've developed
you should've developed
he should've developed
we should've developed
you should've developed
they should've developed	I should've been developing
you should've been developing
he should've been developing
we should've been developing
you should've been developing
they should've been developing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't develop
you shouldn't develop
he shouldn't develop
we shouldn't develop
you shouldn't develop
they shouldn't develop 	I shouldn't be developing
you shouldn't be developing
he shouldn't be developing
we shouldn't be developing
you shouldn't be developing
they shouldn't be developing	I shouldn't have developed
you shouldn't have developed
he shouldn't have developed
we shouldn't have developed
you shouldn't have developed
they shouldn't have developed	I shouldn't have been developing
you shouldn't have been developing
he shouldn't have been developing
we shouldn't have been developing
you shouldn't have been developing
they shouldn't have been developing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I develop?
should you develop?
should he develop?
should we develop?
should you develop?
should they develop? 	should I be developing?
should you be developing?
should he be developing?
should we be developing?
should you be developing?
should they be developing? 	should I have developed?
should you have developed?
should he have developed?
should we have developed?
should you have developed?
should they have developed? 	should I have been developing?
should you have been developing?
should he have been developing?
should we have been developing?
should you have been developing?
should they have been developing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I develop?
shouldn't you develop?
shouldn't he develop?
shouldn't we develop?
shouldn't you develop?
shouldn't they develop? 	shouldn't I be developing?
shouldn't you be developing?
shouldn't he be developing?
shouldn't we be developing?
shouldn't you be developing?
shouldn't they be developing? 	shouldn't I have developed?
shouldn't you have developed?
shouldn't he have developed?
shouldn't we have developed?
shouldn't you have developed?
shouldn't they have developed? 	shouldn't I have been developing?
shouldn't you have been developing?
shouldn't he have been developing?
shouldn't we have been developing?
shouldn't you have been developing?
shouldn't they have been developing?