could humbug
Verbo regular: humbug - humbugged- humbugged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could humbug
you could humbug
he could humbug
we could humbug
you could humbug
they could humbug 	I could be humbugging
you could be humbugging
he could be humbugging
we could be humbugging
you could be humbugging
they could be humbugging	I could have humbugged
you could have humbugged
he could have humbugged
we could have humbugged
you could have humbugged
they could have humbugged	I could have been humbugging
you could have been humbugging
he could have been humbugging
we could have been humbugging
you could have been humbugging
they could have been humbugging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not humbug
you could not humbug
he could not humbug
we could not humbug
you could not humbug
they could not humbug 	I could not be humbugging
you could not be humbugging
he could not be humbugging
we could not be humbugging
you could not be humbugging
they could not be humbugging	I could not have humbugged
you could not have humbugged
he could not have humbugged
we could not have humbugged
you could not have humbugged
they could not have humbugged	I could not have been humbugging
you could not have been humbugging
he could not have been humbugging
we could not have been humbugging
you could not have been humbugging
they could not have been humbugging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I humbug?
could you humbug?
could he humbug?
could we humbug?
could you humbug?
could they humbug? 	could I be humbugging?
could you be humbugging?
could he be humbugging?
could we be humbugging?
could you be humbugging?
could they be humbugging? 	could I have humbugged?
could you have humbugged?
could he have humbugged?
could we have humbugged?
could you have humbugged?
could they have humbugged? 	could I have been humbugging?
could you have been humbugging?
could he have been humbugging?
could we have been humbugging?
could you have been humbugging?
could they have been humbugging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not humbug?
could you not humbug?
could he not humbug?
could we not humbug?
could you not humbug?
could they not humbug? 	could I not be humbugging?
could you not be humbugging?
could he not be humbugging?
could we not be humbugging?
could you not be humbugging?
could they not be humbugging? 	could I not have humbugged?
could you not have humbugged?
could he not have humbugged?
could we not have humbugged?
could you not have humbugged?
could they not have humbugged? 	could I not have been humbugging?
could you not have been humbugging?
could he not have been humbugging?
could we not have been humbugging?
could you not have been humbugging?
could they not have been humbugging?