could outburn
Verbo regular: outburn - outburned- outburned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could outburn
you could outburn
he could outburn
we could outburn
you could outburn
they could outburn 	I could be outburning
you could be outburning
he could be outburning
we could be outburning
you could be outburning
they could be outburning	I could have outburned
you could have outburned
he could have outburned
we could have outburned
you could have outburned
they could have outburned	I could have been outburning
you could have been outburning
he could have been outburning
we could have been outburning
you could have been outburning
they could have been outburning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not outburn
you could not outburn
he could not outburn
we could not outburn
you could not outburn
they could not outburn 	I could not be outburning
you could not be outburning
he could not be outburning
we could not be outburning
you could not be outburning
they could not be outburning	I could not have outburned
you could not have outburned
he could not have outburned
we could not have outburned
you could not have outburned
they could not have outburned	I could not have been outburning
you could not have been outburning
he could not have been outburning
we could not have been outburning
you could not have been outburning
they could not have been outburning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I outburn?
could you outburn?
could he outburn?
could we outburn?
could you outburn?
could they outburn? 	could I be outburning?
could you be outburning?
could he be outburning?
could we be outburning?
could you be outburning?
could they be outburning? 	could I have outburned?
could you have outburned?
could he have outburned?
could we have outburned?
could you have outburned?
could they have outburned? 	could I have been outburning?
could you have been outburning?
could he have been outburning?
could we have been outburning?
could you have been outburning?
could they have been outburning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not outburn?
could you not outburn?
could he not outburn?
could we not outburn?
could you not outburn?
could they not outburn? 	could I not be outburning?
could you not be outburning?
could he not be outburning?
could we not be outburning?
could you not be outburning?
could they not be outburning? 	could I not have outburned?
could you not have outburned?
could he not have outburned?
could we not have outburned?
could you not have outburned?
could they not have outburned? 	could I not have been outburning?
could you not have been outburning?
could he not have been outburning?
could we not have been outburning?
could you not have been outburning?
could they not have been outburning?