can reason
Verbo regular: reason - reasoned- reasoned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can reason
you can reason
he can reason
we can reason
you can reason
they can reason 	I can be reasoning
you can be reasoning
he can be reasoning
we can be reasoning
you can be reasoning
they can be reasoning	I can have reasoned
you can have reasoned
he can have reasoned
we can have reasoned
you can have reasoned
they can have reasoned	I can have been reasoning
you can have been reasoning
he can have been reasoning
we can have been reasoning
you can have been reasoning
they can have been reasoning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot reason
you cannot reason
he cannot reason
we cannot reason
you cannot reason
they cannot reason 	I cannot be reasoning
you cannot be reasoning
he cannot be reasoning
we cannot be reasoning
you cannot be reasoning
they cannot be reasoning	I cannot have reasoned
you cannot have reasoned
he cannot have reasoned
we cannot have reasoned
you cannot have reasoned
they cannot have reasoned	I cannot have been reasoning
you cannot have been reasoning
he cannot have been reasoning
we cannot have been reasoning
you cannot have been reasoning
they cannot have been reasoning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I reason?
can you reason?
can he reason?
can we reason?
can you reason?
can they reason? 	can I be reasoning?
can you be reasoning?
can he be reasoning?
can we be reasoning?
can you be reasoning?
can they be reasoning? 	can I have reasoned?
can you have reasoned?
can he have reasoned?
can we have reasoned?
can you have reasoned?
can they have reasoned? 	can I have been reasoning?
can you have been reasoning?
can he have been reasoning?
can we have been reasoning?
can you have been reasoning?
can they have been reasoning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not reason?
can you not reason?
can he not reason?
can we not reason?
can you not reason?
can they not reason? 	can I not be reasoning?
can you not be reasoning?
can he not be reasoning?
can we not be reasoning?
can you not be reasoning?
can they not be reasoning? 	can I not have reasoned?
can you not have reasoned?
can he not have reasoned?
can we not have reasoned?
can you not have reasoned?
can they not have reasoned? 	can I not have been reasoning?
can you not have been reasoning?
can he not have been reasoning?
can we not have been reasoning?
can you not have been reasoning?
can they not have been reasoning?