can double-bill
Verbo regular: double-bill - double-billed- double-billed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can double-bill
you can double-bill
he can double-bill
we can double-bill
you can double-bill
they can double-bill 	I can be double-billing
you can be double-billing
he can be double-billing
we can be double-billing
you can be double-billing
they can be double-billing	I can have double-billed
you can have double-billed
he can have double-billed
we can have double-billed
you can have double-billed
they can have double-billed	I can have been double-billing
you can have been double-billing
he can have been double-billing
we can have been double-billing
you can have been double-billing
they can have been double-billing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot double-bill
you cannot double-bill
he cannot double-bill
we cannot double-bill
you cannot double-bill
they cannot double-bill 	I cannot be double-billing
you cannot be double-billing
he cannot be double-billing
we cannot be double-billing
you cannot be double-billing
they cannot be double-billing	I cannot have double-billed
you cannot have double-billed
he cannot have double-billed
we cannot have double-billed
you cannot have double-billed
they cannot have double-billed	I cannot have been double-billing
you cannot have been double-billing
he cannot have been double-billing
we cannot have been double-billing
you cannot have been double-billing
they cannot have been double-billing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I double-bill?
can you double-bill?
can he double-bill?
can we double-bill?
can you double-bill?
can they double-bill? 	can I be double-billing?
can you be double-billing?
can he be double-billing?
can we be double-billing?
can you be double-billing?
can they be double-billing? 	can I have double-billed?
can you have double-billed?
can he have double-billed?
can we have double-billed?
can you have double-billed?
can they have double-billed? 	can I have been double-billing?
can you have been double-billing?
can he have been double-billing?
can we have been double-billing?
can you have been double-billing?
can they have been double-billing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not double-bill?
can you not double-bill?
can he not double-bill?
can we not double-bill?
can you not double-bill?
can they not double-bill? 	can I not be double-billing?
can you not be double-billing?
can he not be double-billing?
can we not be double-billing?
can you not be double-billing?
can they not be double-billing? 	can I not have double-billed?
can you not have double-billed?
can he not have double-billed?
can we not have double-billed?
can you not have double-billed?
can they not have double-billed? 	can I not have been double-billing?
can you not have been double-billing?
can he not have been double-billing?
can we not have been double-billing?
can you not have been double-billing?
can they not have been double-billing?