should crump
Regular verb: crump - crumped- crumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should crump
you should crump
she should crump
we should crump
you should crump
they should crump 	I should be crumping
you should be crumping
she should be crumping
we should be crumping
you should be crumping
they should be crumping	I should have crumped
you should have crumped
she should have crumped
we should have crumped
you should have crumped
they should have crumped	I should have been crumping
you should have been crumping
she should have been crumping
we should have been crumping
you should have been crumping
they should have been crumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not crump
you should not crump
she should not crump
we should not crump
you should not crump
they should not crump 	I should not be crumping
you should not be crumping
she should not be crumping
we should not be crumping
you should not be crumping
they should not be crumping	I should not have crumped
you should not have crumped
she should not have crumped
we should not have crumped
you should not have crumped
they should not have crumped	I should not have been crumping
you should not have been crumping
she should not have been crumping
we should not have been crumping
you should not have been crumping
they should not have been crumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I crump?
should you crump?
should she crump?
should we crump?
should you crump?
should they crump? 	should I be crumping?
should you be crumping?
should she be crumping?
should we be crumping?
should you be crumping?
should they be crumping? 	should I have crumped?
should you have crumped?
should she have crumped?
should we have crumped?
should you have crumped?
should they have crumped? 	should I have been crumping?
should you have been crumping?
should she have been crumping?
should we have been crumping?
should you have been crumping?
should they have been crumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not crump?
should you not crump?
should she not crump?
should we not crump?
should you not crump?
should they not crump? 	should I not be crumping?
should you not be crumping?
should she not be crumping?
should we not be crumping?
should you not be crumping?
should they not be crumping? 	should I not have crumped?
should you not have crumped?
should she not have crumped?
should we not have crumped?
should you not have crumped?
should they not have crumped? 	should I not have been crumping?
should you not have been crumping?
should she not have been crumping?
should we not have been crumping?
should you not have been crumping?
should they not have been crumping?