should degrease
Regular verb: degrease - degreased- degreased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should degrease
you should degrease
she should degrease
we should degrease
you should degrease
they should degrease 	I should be degreasing
you should be degreasing
she should be degreasing
we should be degreasing
you should be degreasing
they should be degreasing	I should have degreased
you should have degreased
she should have degreased
we should have degreased
you should have degreased
they should have degreased	I should have been degreasing
you should have been degreasing
she should have been degreasing
we should have been degreasing
you should have been degreasing
they should have been degreasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not degrease
you should not degrease
she should not degrease
we should not degrease
you should not degrease
they should not degrease 	I should not be degreasing
you should not be degreasing
she should not be degreasing
we should not be degreasing
you should not be degreasing
they should not be degreasing	I should not have degreased
you should not have degreased
she should not have degreased
we should not have degreased
you should not have degreased
they should not have degreased	I should not have been degreasing
you should not have been degreasing
she should not have been degreasing
we should not have been degreasing
you should not have been degreasing
they should not have been degreasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I degrease?
should you degrease?
should she degrease?
should we degrease?
should you degrease?
should they degrease? 	should I be degreasing?
should you be degreasing?
should she be degreasing?
should we be degreasing?
should you be degreasing?
should they be degreasing? 	should I have degreased?
should you have degreased?
should she have degreased?
should we have degreased?
should you have degreased?
should they have degreased? 	should I have been degreasing?
should you have been degreasing?
should she have been degreasing?
should we have been degreasing?
should you have been degreasing?
should they have been degreasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not degrease?
should you not degrease?
should she not degrease?
should we not degrease?
should you not degrease?
should they not degrease? 	should I not be degreasing?
should you not be degreasing?
should she not be degreasing?
should we not be degreasing?
should you not be degreasing?
should they not be degreasing? 	should I not have degreased?
should you not have degreased?
should she not have degreased?
should we not have degreased?
should you not have degreased?
should they not have degreased? 	should I not have been degreasing?
should you not have been degreasing?
should she not have been degreasing?
should we not have been degreasing?
should you not have been degreasing?
should they not have been degreasing?