should service
Verbo regular: service - serviced- serviced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should service
you should service
he should service
we should service
you should service
they should service 	I should be servicing
you should be servicing
he should be servicing
we should be servicing
you should be servicing
they should be servicing	I should have serviced
you should have serviced
he should have serviced
we should have serviced
you should have serviced
they should have serviced	I should have been servicing
you should have been servicing
he should have been servicing
we should have been servicing
you should have been servicing
they should have been servicing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not service
you should not service
he should not service
we should not service
you should not service
they should not service 	I should not be servicing
you should not be servicing
he should not be servicing
we should not be servicing
you should not be servicing
they should not be servicing	I should not have serviced
you should not have serviced
he should not have serviced
we should not have serviced
you should not have serviced
they should not have serviced	I should not have been servicing
you should not have been servicing
he should not have been servicing
we should not have been servicing
you should not have been servicing
they should not have been servicing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I service?
should you service?
should he service?
should we service?
should you service?
should they service? 	should I be servicing?
should you be servicing?
should he be servicing?
should we be servicing?
should you be servicing?
should they be servicing? 	should I have serviced?
should you have serviced?
should he have serviced?
should we have serviced?
should you have serviced?
should they have serviced? 	should I have been servicing?
should you have been servicing?
should he have been servicing?
should we have been servicing?
should you have been servicing?
should they have been servicing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not service?
should you not service?
should he not service?
should we not service?
should you not service?
should they not service? 	should I not be servicing?
should you not be servicing?
should he not be servicing?
should we not be servicing?
should you not be servicing?
should they not be servicing? 	should I not have serviced?
should you not have serviced?
should he not have serviced?
should we not have serviced?
should you not have serviced?
should they not have serviced? 	should I not have been servicing?
should you not have been servicing?
should he not have been servicing?
should we not have been servicing?
should you not have been servicing?
should they not have been servicing?