can ko
Regular verb: ko - koed- koed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can ko
you can ko
she can ko
we can ko
you can ko
they can ko 	I can be koing
you can be koing
she can be koing
we can be koing
you can be koing
they can be koing	I can have koed
you can have koed
she can have koed
we can have koed
you can have koed
they can have koed	I can have been koing
you can have been koing
she can have been koing
we can have been koing
you can have been koing
they can have been koing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot ko
you cannot ko
she cannot ko
we cannot ko
you cannot ko
they cannot ko 	I cannot be koing
you cannot be koing
she cannot be koing
we cannot be koing
you cannot be koing
they cannot be koing	I cannot have koed
you cannot have koed
she cannot have koed
we cannot have koed
you cannot have koed
they cannot have koed	I cannot have been koing
you cannot have been koing
she cannot have been koing
we cannot have been koing
you cannot have been koing
they cannot have been koing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I ko?
can you ko?
can she ko?
can we ko?
can you ko?
can they ko? 	can I be koing?
can you be koing?
can she be koing?
can we be koing?
can you be koing?
can they be koing? 	can I have koed?
can you have koed?
can she have koed?
can we have koed?
can you have koed?
can they have koed? 	can I have been koing?
can you have been koing?
can she have been koing?
can we have been koing?
can you have been koing?
can they have been koing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not ko?
can you not ko?
can she not ko?
can we not ko?
can you not ko?
can they not ko? 	can I not be koing?
can you not be koing?
can she not be koing?
can we not be koing?
can you not be koing?
can they not be koing? 	can I not have koed?
can you not have koed?
can she not have koed?
can we not have koed?
can you not have koed?
can they not have koed? 	can I not have been koing?
can you not have been koing?
can she not have been koing?
can we not have been koing?
can you not have been koing?
can they not have been koing?