can crib
Verbo regular: crib - cribbed- cribbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can crib
you can crib
he can crib
we can crib
you can crib
they can crib 	I can be cribbing
you can be cribbing
he can be cribbing
we can be cribbing
you can be cribbing
they can be cribbing	I can have cribbed
you can have cribbed
he can have cribbed
we can have cribbed
you can have cribbed
they can have cribbed	I can have been cribbing
you can have been cribbing
he can have been cribbing
we can have been cribbing
you can have been cribbing
they can have been cribbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot crib
you cannot crib
he cannot crib
we cannot crib
you cannot crib
they cannot crib 	I cannot be cribbing
you cannot be cribbing
he cannot be cribbing
we cannot be cribbing
you cannot be cribbing
they cannot be cribbing	I cannot have cribbed
you cannot have cribbed
he cannot have cribbed
we cannot have cribbed
you cannot have cribbed
they cannot have cribbed	I cannot have been cribbing
you cannot have been cribbing
he cannot have been cribbing
we cannot have been cribbing
you cannot have been cribbing
they cannot have been cribbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I crib?
can you crib?
can he crib?
can we crib?
can you crib?
can they crib? 	can I be cribbing?
can you be cribbing?
can he be cribbing?
can we be cribbing?
can you be cribbing?
can they be cribbing? 	can I have cribbed?
can you have cribbed?
can he have cribbed?
can we have cribbed?
can you have cribbed?
can they have cribbed? 	can I have been cribbing?
can you have been cribbing?
can he have been cribbing?
can we have been cribbing?
can you have been cribbing?
can they have been cribbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not crib?
can you not crib?
can he not crib?
can we not crib?
can you not crib?
can they not crib? 	can I not be cribbing?
can you not be cribbing?
can he not be cribbing?
can we not be cribbing?
can you not be cribbing?
can they not be cribbing? 	can I not have cribbed?
can you not have cribbed?
can he not have cribbed?
can we not have cribbed?
can you not have cribbed?
can they not have cribbed? 	can I not have been cribbing?
can you not have been cribbing?
can he not have been cribbing?
can we not have been cribbing?
can you not have been cribbing?
can they not have been cribbing?