should factor
Regular verb: factor - factored- factored

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should factor
you should factor
she should factor
we should factor
you should factor
they should factor 	I should be factoring
you should be factoring
she should be factoring
we should be factoring
you should be factoring
they should be factoring	I should have factored
you should have factored
she should have factored
we should have factored
you should have factored
they should have factored	I should have been factoring
you should have been factoring
she should have been factoring
we should have been factoring
you should have been factoring
they should have been factoring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not factor
you should not factor
she should not factor
we should not factor
you should not factor
they should not factor 	I should not be factoring
you should not be factoring
she should not be factoring
we should not be factoring
you should not be factoring
they should not be factoring	I should not have factored
you should not have factored
she should not have factored
we should not have factored
you should not have factored
they should not have factored	I should not have been factoring
you should not have been factoring
she should not have been factoring
we should not have been factoring
you should not have been factoring
they should not have been factoring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I factor?
should you factor?
should she factor?
should we factor?
should you factor?
should they factor? 	should I be factoring?
should you be factoring?
should she be factoring?
should we be factoring?
should you be factoring?
should they be factoring? 	should I have factored?
should you have factored?
should she have factored?
should we have factored?
should you have factored?
should they have factored? 	should I have been factoring?
should you have been factoring?
should she have been factoring?
should we have been factoring?
should you have been factoring?
should they have been factoring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not factor?
should you not factor?
should she not factor?
should we not factor?
should you not factor?
should they not factor? 	should I not be factoring?
should you not be factoring?
should she not be factoring?
should we not be factoring?
should you not be factoring?
should they not be factoring? 	should I not have factored?
should you not have factored?
should she not have factored?
should we not have factored?
should you not have factored?
should they not have factored? 	should I not have been factoring?
should you not have been factoring?
should she not have been factoring?
should we not have been factoring?
should you not have been factoring?
should they not have been factoring?