should counterweight
Regular verb: counterweight - counterweighted- counterweighted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should counterweight
you should counterweight
she should counterweight
we should counterweight
you should counterweight
they should counterweight 	I should be counterweighting
you should be counterweighting
she should be counterweighting
we should be counterweighting
you should be counterweighting
they should be counterweighting	I should have counterweighted
you should have counterweighted
she should have counterweighted
we should have counterweighted
you should have counterweighted
they should have counterweighted	I should have been counterweighting
you should have been counterweighting
she should have been counterweighting
we should have been counterweighting
you should have been counterweighting
they should have been counterweighting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not counterweight
you should not counterweight
she should not counterweight
we should not counterweight
you should not counterweight
they should not counterweight 	I should not be counterweighting
you should not be counterweighting
she should not be counterweighting
we should not be counterweighting
you should not be counterweighting
they should not be counterweighting	I should not have counterweighted
you should not have counterweighted
she should not have counterweighted
we should not have counterweighted
you should not have counterweighted
they should not have counterweighted	I should not have been counterweighting
you should not have been counterweighting
she should not have been counterweighting
we should not have been counterweighting
you should not have been counterweighting
they should not have been counterweighting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I counterweight?
should you counterweight?
should she counterweight?
should we counterweight?
should you counterweight?
should they counterweight? 	should I be counterweighting?
should you be counterweighting?
should she be counterweighting?
should we be counterweighting?
should you be counterweighting?
should they be counterweighting? 	should I have counterweighted?
should you have counterweighted?
should she have counterweighted?
should we have counterweighted?
should you have counterweighted?
should they have counterweighted? 	should I have been counterweighting?
should you have been counterweighting?
should she have been counterweighting?
should we have been counterweighting?
should you have been counterweighting?
should they have been counterweighting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not counterweight?
should you not counterweight?
should she not counterweight?
should we not counterweight?
should you not counterweight?
should they not counterweight? 	should I not be counterweighting?
should you not be counterweighting?
should she not be counterweighting?
should we not be counterweighting?
should you not be counterweighting?
should they not be counterweighting? 	should I not have counterweighted?
should you not have counterweighted?
should she not have counterweighted?
should we not have counterweighted?
should you not have counterweighted?
should they not have counterweighted? 	should I not have been counterweighting?
should you not have been counterweighting?
should she not have been counterweighting?
should we not have been counterweighting?
should you not have been counterweighting?
should they not have been counterweighting?