can background
Verbo regular: background - backgrounded- backgrounded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can background
you can background
he can background
we can background
you can background
they can background 	I can be backgrounding
you can be backgrounding
he can be backgrounding
we can be backgrounding
you can be backgrounding
they can be backgrounding	I can have backgrounded
you can have backgrounded
he can have backgrounded
we can have backgrounded
you can have backgrounded
they can have backgrounded	I can have been backgrounding
you can have been backgrounding
he can have been backgrounding
we can have been backgrounding
you can have been backgrounding
they can have been backgrounding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't background
you can't background
he can't background
we can't background
you can't background
they can't background 	I can't be backgrounding
you can't be backgrounding
he can't be backgrounding
we can't be backgrounding
you can't be backgrounding
they can't be backgrounding	I can't have backgrounded
you can't have backgrounded
he can't have backgrounded
we can't have backgrounded
you can't have backgrounded
they can't have backgrounded	I can't have been backgrounding
you can't have been backgrounding
he can't have been backgrounding
we can't have been backgrounding
you can't have been backgrounding
they can't have been backgrounding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I background?
can you background?
can he background?
can we background?
can you background?
can they background? 	can I be backgrounding?
can you be backgrounding?
can he be backgrounding?
can we be backgrounding?
can you be backgrounding?
can they be backgrounding? 	can I have backgrounded?
can you have backgrounded?
can he have backgrounded?
can we have backgrounded?
can you have backgrounded?
can they have backgrounded? 	can I have been backgrounding?
can you have been backgrounding?
can he have been backgrounding?
can we have been backgrounding?
can you have been backgrounding?
can they have been backgrounding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I background?
can't you background?
can't he background?
can't we background?
can't you background?
can't they background? 	can't I be backgrounding?
can't you be backgrounding?
can't he be backgrounding?
can't we be backgrounding?
can't you be backgrounding?
can't they be backgrounding? 	can't I have backgrounded?
can't you have backgrounded?
can't he have backgrounded?
can't we have backgrounded?
can't you have backgrounded?
can't they have backgrounded? 	can't I have been backgrounding?
can't you have been backgrounding?
can't he have been backgrounding?
can't we have been backgrounding?
can't you have been backgrounding?
can't they have been backgrounding?