can krass
Verbo regular: krass - krassed- krassed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can krass
you can krass
he can krass
we can krass
you can krass
they can krass 	I can be krassing
you can be krassing
he can be krassing
we can be krassing
you can be krassing
they can be krassing	I can have krassed
you can have krassed
he can have krassed
we can have krassed
you can have krassed
they can have krassed	I can have been krassing
you can have been krassing
he can have been krassing
we can have been krassing
you can have been krassing
they can have been krassing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot krass
you cannot krass
he cannot krass
we cannot krass
you cannot krass
they cannot krass 	I cannot be krassing
you cannot be krassing
he cannot be krassing
we cannot be krassing
you cannot be krassing
they cannot be krassing	I cannot have krassed
you cannot have krassed
he cannot have krassed
we cannot have krassed
you cannot have krassed
they cannot have krassed	I cannot have been krassing
you cannot have been krassing
he cannot have been krassing
we cannot have been krassing
you cannot have been krassing
they cannot have been krassing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I krass?
can you krass?
can he krass?
can we krass?
can you krass?
can they krass? 	can I be krassing?
can you be krassing?
can he be krassing?
can we be krassing?
can you be krassing?
can they be krassing? 	can I have krassed?
can you have krassed?
can he have krassed?
can we have krassed?
can you have krassed?
can they have krassed? 	can I have been krassing?
can you have been krassing?
can he have been krassing?
can we have been krassing?
can you have been krassing?
can they have been krassing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not krass?
can you not krass?
can he not krass?
can we not krass?
can you not krass?
can they not krass? 	can I not be krassing?
can you not be krassing?
can he not be krassing?
can we not be krassing?
can you not be krassing?
can they not be krassing? 	can I not have krassed?
can you not have krassed?
can he not have krassed?
can we not have krassed?
can you not have krassed?
can they not have krassed? 	can I not have been krassing?
can you not have been krassing?
can he not have been krassing?
can we not have been krassing?
can you not have been krassing?
can they not have been krassing?