should crease
Regular verb: crease - creased- creased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should crease
you should crease
he should crease
we should crease
you should crease
they should crease 	I should be creasing
you should be creasing
he should be creasing
we should be creasing
you should be creasing
they should be creasing	I should have creased
you should have creased
he should have creased
we should have creased
you should have creased
they should have creased	I should have been creasing
you should have been creasing
he should have been creasing
we should have been creasing
you should have been creasing
they should have been creasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not crease
you should not crease
he should not crease
we should not crease
you should not crease
they should not crease 	I should not be creasing
you should not be creasing
he should not be creasing
we should not be creasing
you should not be creasing
they should not be creasing	I should not have creased
you should not have creased
he should not have creased
we should not have creased
you should not have creased
they should not have creased	I should not have been creasing
you should not have been creasing
he should not have been creasing
we should not have been creasing
you should not have been creasing
they should not have been creasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I crease?
should you crease?
should he crease?
should we crease?
should you crease?
should they crease? 	should I be creasing?
should you be creasing?
should he be creasing?
should we be creasing?
should you be creasing?
should they be creasing? 	should I have creased?
should you have creased?
should he have creased?
should we have creased?
should you have creased?
should they have creased? 	should I have been creasing?
should you have been creasing?
should he have been creasing?
should we have been creasing?
should you have been creasing?
should they have been creasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not crease?
should you not crease?
should he not crease?
should we not crease?
should you not crease?
should they not crease? 	should I not be creasing?
should you not be creasing?
should he not be creasing?
should we not be creasing?
should you not be creasing?
should they not be creasing? 	should I not have creased?
should you not have creased?
should he not have creased?
should we not have creased?
should you not have creased?
should they not have creased? 	should I not have been creasing?
should you not have been creasing?
should he not have been creasing?
should we not have been creasing?
should you not have been creasing?
should they not have been creasing?