should postmark
Verbo regular: postmark - postmarked- postmarked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should postmark
you should postmark
she should postmark
we should postmark
you should postmark
they should postmark 	I should be postmarking
you should be postmarking
she should be postmarking
we should be postmarking
you should be postmarking
they should be postmarking	I should have postmarked
you should have postmarked
she should have postmarked
we should have postmarked
you should have postmarked
they should have postmarked	I should have been postmarking
you should have been postmarking
she should have been postmarking
we should have been postmarking
you should have been postmarking
they should have been postmarking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not postmark
you should not postmark
she should not postmark
we should not postmark
you should not postmark
they should not postmark 	I should not be postmarking
you should not be postmarking
she should not be postmarking
we should not be postmarking
you should not be postmarking
they should not be postmarking	I should not have postmarked
you should not have postmarked
she should not have postmarked
we should not have postmarked
you should not have postmarked
they should not have postmarked	I should not have been postmarking
you should not have been postmarking
she should not have been postmarking
we should not have been postmarking
you should not have been postmarking
they should not have been postmarking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I postmark?
should you postmark?
should she postmark?
should we postmark?
should you postmark?
should they postmark? 	should I be postmarking?
should you be postmarking?
should she be postmarking?
should we be postmarking?
should you be postmarking?
should they be postmarking? 	should I have postmarked?
should you have postmarked?
should she have postmarked?
should we have postmarked?
should you have postmarked?
should they have postmarked? 	should I have been postmarking?
should you have been postmarking?
should she have been postmarking?
should we have been postmarking?
should you have been postmarking?
should they have been postmarking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not postmark?
should you not postmark?
should she not postmark?
should we not postmark?
should you not postmark?
should they not postmark? 	should I not be postmarking?
should you not be postmarking?
should she not be postmarking?
should we not be postmarking?
should you not be postmarking?
should they not be postmarking? 	should I not have postmarked?
should you not have postmarked?
should she not have postmarked?
should we not have postmarked?
should you not have postmarked?
should they not have postmarked? 	should I not have been postmarking?
should you not have been postmarking?
should she not have been postmarking?
should we not have been postmarking?
should you not have been postmarking?
should they not have been postmarking?