should double-bill
Verbo regular: double-bill - double-billed- double-billed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should double-bill
you should double-bill
she should double-bill
we should double-bill
you should double-bill
they should double-bill 	I should be double-billing
you should be double-billing
she should be double-billing
we should be double-billing
you should be double-billing
they should be double-billing	I should have double-billed
you should have double-billed
she should have double-billed
we should have double-billed
you should have double-billed
they should have double-billed	I should have been double-billing
you should have been double-billing
she should have been double-billing
we should have been double-billing
you should have been double-billing
they should have been double-billing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not double-bill
you should not double-bill
she should not double-bill
we should not double-bill
you should not double-bill
they should not double-bill 	I should not be double-billing
you should not be double-billing
she should not be double-billing
we should not be double-billing
you should not be double-billing
they should not be double-billing	I should not have double-billed
you should not have double-billed
she should not have double-billed
we should not have double-billed
you should not have double-billed
they should not have double-billed	I should not have been double-billing
you should not have been double-billing
she should not have been double-billing
we should not have been double-billing
you should not have been double-billing
they should not have been double-billing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I double-bill?
should you double-bill?
should she double-bill?
should we double-bill?
should you double-bill?
should they double-bill? 	should I be double-billing?
should you be double-billing?
should she be double-billing?
should we be double-billing?
should you be double-billing?
should they be double-billing? 	should I have double-billed?
should you have double-billed?
should she have double-billed?
should we have double-billed?
should you have double-billed?
should they have double-billed? 	should I have been double-billing?
should you have been double-billing?
should she have been double-billing?
should we have been double-billing?
should you have been double-billing?
should they have been double-billing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not double-bill?
should you not double-bill?
should she not double-bill?
should we not double-bill?
should you not double-bill?
should they not double-bill? 	should I not be double-billing?
should you not be double-billing?
should she not be double-billing?
should we not be double-billing?
should you not be double-billing?
should they not be double-billing? 	should I not have double-billed?
should you not have double-billed?
should she not have double-billed?
should we not have double-billed?
should you not have double-billed?
should they not have double-billed? 	should I not have been double-billing?
should you not have been double-billing?
should she not have been double-billing?
should we not have been double-billing?
should you not have been double-billing?
should they not have been double-billing?