should polish
Regular verb: polish - polished- polished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd polish
you'd polish
she'd polish
we'd polish
you'd polish
they'd polish 	I'd be polishing
you'd be polishing
she'd be polishing
we'd be polishing
you'd be polishing
they'd be polishing	I should've polished
you should've polished
she should've polished
we should've polished
you should've polished
they should've polished	I should've been polishing
you should've been polishing
she should've been polishing
we should've been polishing
you should've been polishing
they should've been polishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't polish
you shouldn't polish
she shouldn't polish
we shouldn't polish
you shouldn't polish
they shouldn't polish 	I shouldn't be polishing
you shouldn't be polishing
she shouldn't be polishing
we shouldn't be polishing
you shouldn't be polishing
they shouldn't be polishing	I shouldn't have polished
you shouldn't have polished
she shouldn't have polished
we shouldn't have polished
you shouldn't have polished
they shouldn't have polished	I shouldn't have been polishing
you shouldn't have been polishing
she shouldn't have been polishing
we shouldn't have been polishing
you shouldn't have been polishing
they shouldn't have been polishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I polish?
should you polish?
should she polish?
should we polish?
should you polish?
should they polish? 	should I be polishing?
should you be polishing?
should she be polishing?
should we be polishing?
should you be polishing?
should they be polishing? 	should I have polished?
should you have polished?
should she have polished?
should we have polished?
should you have polished?
should they have polished? 	should I have been polishing?
should you have been polishing?
should she have been polishing?
should we have been polishing?
should you have been polishing?
should they have been polishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I polish?
shouldn't you polish?
shouldn't she polish?
shouldn't we polish?
shouldn't you polish?
shouldn't they polish? 	shouldn't I be polishing?
shouldn't you be polishing?
shouldn't she be polishing?
shouldn't we be polishing?
shouldn't you be polishing?
shouldn't they be polishing? 	shouldn't I have polished?
shouldn't you have polished?
shouldn't she have polished?
shouldn't we have polished?
shouldn't you have polished?
shouldn't they have polished? 	shouldn't I have been polishing?
shouldn't you have been polishing?
shouldn't she have been polishing?
shouldn't we have been polishing?
shouldn't you have been polishing?
shouldn't they have been polishing?