should ref
Verbo regular: ref - refed- refed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should ref
you should ref
she should ref
we should ref
you should ref
they should ref 	I should be refing
you should be refing
she should be refing
we should be refing
you should be refing
they should be refing	I should have refed
you should have refed
she should have refed
we should have refed
you should have refed
they should have refed	I should have been refing
you should have been refing
she should have been refing
we should have been refing
you should have been refing
they should have been refing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not ref
you should not ref
she should not ref
we should not ref
you should not ref
they should not ref 	I should not be refing
you should not be refing
she should not be refing
we should not be refing
you should not be refing
they should not be refing	I should not have refed
you should not have refed
she should not have refed
we should not have refed
you should not have refed
they should not have refed	I should not have been refing
you should not have been refing
she should not have been refing
we should not have been refing
you should not have been refing
they should not have been refing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I ref?
should you ref?
should she ref?
should we ref?
should you ref?
should they ref? 	should I be refing?
should you be refing?
should she be refing?
should we be refing?
should you be refing?
should they be refing? 	should I have refed?
should you have refed?
should she have refed?
should we have refed?
should you have refed?
should they have refed? 	should I have been refing?
should you have been refing?
should she have been refing?
should we have been refing?
should you have been refing?
should they have been refing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not ref?
should you not ref?
should she not ref?
should we not ref?
should you not ref?
should they not ref? 	should I not be refing?
should you not be refing?
should she not be refing?
should we not be refing?
should you not be refing?
should they not be refing? 	should I not have refed?
should you not have refed?
should she not have refed?
should we not have refed?
should you not have refed?
should they not have refed? 	should I not have been refing?
should you not have been refing?
should she not have been refing?
should we not have been refing?
should you not have been refing?
should they not have been refing?