can saber
Verbo regular: saber - sabered- sabered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can saber
you can saber
she can saber
we can saber
you can saber
they can saber 	I can be sabering
you can be sabering
she can be sabering
we can be sabering
you can be sabering
they can be sabering	I can have sabered
you can have sabered
she can have sabered
we can have sabered
you can have sabered
they can have sabered	I can have been sabering
you can have been sabering
she can have been sabering
we can have been sabering
you can have been sabering
they can have been sabering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot saber
you cannot saber
she cannot saber
we cannot saber
you cannot saber
they cannot saber 	I cannot be sabering
you cannot be sabering
she cannot be sabering
we cannot be sabering
you cannot be sabering
they cannot be sabering	I cannot have sabered
you cannot have sabered
she cannot have sabered
we cannot have sabered
you cannot have sabered
they cannot have sabered	I cannot have been sabering
you cannot have been sabering
she cannot have been sabering
we cannot have been sabering
you cannot have been sabering
they cannot have been sabering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I saber?
can you saber?
can she saber?
can we saber?
can you saber?
can they saber? 	can I be sabering?
can you be sabering?
can she be sabering?
can we be sabering?
can you be sabering?
can they be sabering? 	can I have sabered?
can you have sabered?
can she have sabered?
can we have sabered?
can you have sabered?
can they have sabered? 	can I have been sabering?
can you have been sabering?
can she have been sabering?
can we have been sabering?
can you have been sabering?
can they have been sabering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not saber?
can you not saber?
can she not saber?
can we not saber?
can you not saber?
can they not saber? 	can I not be sabering?
can you not be sabering?
can she not be sabering?
can we not be sabering?
can you not be sabering?
can they not be sabering? 	can I not have sabered?
can you not have sabered?
can she not have sabered?
can we not have sabered?
can you not have sabered?
can they not have sabered? 	can I not have been sabering?
can you not have been sabering?
can she not have been sabering?
can we not have been sabering?
can you not have been sabering?
can they not have been sabering?