can bitter
Verbo regular: bitter - bittered- bittered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can bitter
you can bitter
he can bitter
we can bitter
you can bitter
they can bitter 	I can be bittering
you can be bittering
he can be bittering
we can be bittering
you can be bittering
they can be bittering	I can have bittered
you can have bittered
he can have bittered
we can have bittered
you can have bittered
they can have bittered	I can have been bittering
you can have been bittering
he can have been bittering
we can have been bittering
you can have been bittering
they can have been bittering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot bitter
you cannot bitter
he cannot bitter
we cannot bitter
you cannot bitter
they cannot bitter 	I cannot be bittering
you cannot be bittering
he cannot be bittering
we cannot be bittering
you cannot be bittering
they cannot be bittering	I cannot have bittered
you cannot have bittered
he cannot have bittered
we cannot have bittered
you cannot have bittered
they cannot have bittered	I cannot have been bittering
you cannot have been bittering
he cannot have been bittering
we cannot have been bittering
you cannot have been bittering
they cannot have been bittering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I bitter?
can you bitter?
can he bitter?
can we bitter?
can you bitter?
can they bitter? 	can I be bittering?
can you be bittering?
can he be bittering?
can we be bittering?
can you be bittering?
can they be bittering? 	can I have bittered?
can you have bittered?
can he have bittered?
can we have bittered?
can you have bittered?
can they have bittered? 	can I have been bittering?
can you have been bittering?
can he have been bittering?
can we have been bittering?
can you have been bittering?
can they have been bittering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not bitter?
can you not bitter?
can he not bitter?
can we not bitter?
can you not bitter?
can they not bitter? 	can I not be bittering?
can you not be bittering?
can he not be bittering?
can we not be bittering?
can you not be bittering?
can they not be bittering? 	can I not have bittered?
can you not have bittered?
can he not have bittered?
can we not have bittered?
can you not have bittered?
can they not have bittered? 	can I not have been bittering?
can you not have been bittering?
can he not have been bittering?
can we not have been bittering?
can you not have been bittering?
can they not have been bittering?