should marble
Regular verb: marble - marbled- marbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should marble
you should marble
she should marble
we should marble
you should marble
they should marble 	I should be marbling
you should be marbling
she should be marbling
we should be marbling
you should be marbling
they should be marbling	I should have marbled
you should have marbled
she should have marbled
we should have marbled
you should have marbled
they should have marbled	I should have been marbling
you should have been marbling
she should have been marbling
we should have been marbling
you should have been marbling
they should have been marbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not marble
you should not marble
she should not marble
we should not marble
you should not marble
they should not marble 	I should not be marbling
you should not be marbling
she should not be marbling
we should not be marbling
you should not be marbling
they should not be marbling	I should not have marbled
you should not have marbled
she should not have marbled
we should not have marbled
you should not have marbled
they should not have marbled	I should not have been marbling
you should not have been marbling
she should not have been marbling
we should not have been marbling
you should not have been marbling
they should not have been marbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I marble?
should you marble?
should she marble?
should we marble?
should you marble?
should they marble? 	should I be marbling?
should you be marbling?
should she be marbling?
should we be marbling?
should you be marbling?
should they be marbling? 	should I have marbled?
should you have marbled?
should she have marbled?
should we have marbled?
should you have marbled?
should they have marbled? 	should I have been marbling?
should you have been marbling?
should she have been marbling?
should we have been marbling?
should you have been marbling?
should they have been marbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not marble?
should you not marble?
should she not marble?
should we not marble?
should you not marble?
should they not marble? 	should I not be marbling?
should you not be marbling?
should she not be marbling?
should we not be marbling?
should you not be marbling?
should they not be marbling? 	should I not have marbled?
should you not have marbled?
should she not have marbled?
should we not have marbled?
should you not have marbled?
should they not have marbled? 	should I not have been marbling?
should you not have been marbling?
should she not have been marbling?
should we not have been marbling?
should you not have been marbling?
should they not have been marbling?