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 cannot background
you cannot background
he cannot background
we cannot background
you cannot background
they cannot background 	I cannot be backgrounding
you cannot be backgrounding
he cannot be backgrounding
we cannot be backgrounding
you cannot be backgrounding
they cannot be backgrounding	I cannot have backgrounded
you cannot have backgrounded
he cannot have backgrounded
we cannot have backgrounded
you cannot have backgrounded
they cannot have backgrounded	I cannot have been backgrounding
you cannot have been backgrounding
he cannot have been backgrounding
we cannot have been backgrounding
you cannot have been backgrounding
they cannot 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 I not background?
can you not background?
can he not background?
can we not background?
can you not background?
can they not background? 	can I not be backgrounding?
can you not be backgrounding?
can he not be backgrounding?
can we not be backgrounding?
can you not be backgrounding?
can they not be backgrounding? 	can I not have backgrounded?
can you not have backgrounded?
can he not have backgrounded?
can we not have backgrounded?
can you not have backgrounded?
can they not have backgrounded? 	can I not have been backgrounding?
can you not have been backgrounding?
can he not have been backgrounding?
can we not have been backgrounding?
can you not have been backgrounding?
can they not have been backgrounding?