can kosher
Regular verb: kosher - koshered- koshered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can kosher
you can kosher
he can kosher
we can kosher
you can kosher
they can kosher 	I can be koshering
you can be koshering
he can be koshering
we can be koshering
you can be koshering
they can be koshering	I can have koshered
you can have koshered
he can have koshered
we can have koshered
you can have koshered
they can have koshered	I can have been koshering
you can have been koshering
he can have been koshering
we can have been koshering
you can have been koshering
they can have been koshering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot kosher
you cannot kosher
he cannot kosher
we cannot kosher
you cannot kosher
they cannot kosher 	I cannot be koshering
you cannot be koshering
he cannot be koshering
we cannot be koshering
you cannot be koshering
they cannot be koshering	I cannot have koshered
you cannot have koshered
he cannot have koshered
we cannot have koshered
you cannot have koshered
they cannot have koshered	I cannot have been koshering
you cannot have been koshering
he cannot have been koshering
we cannot have been koshering
you cannot have been koshering
they cannot have been koshering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I kosher?
can you kosher?
can he kosher?
can we kosher?
can you kosher?
can they kosher? 	can I be koshering?
can you be koshering?
can he be koshering?
can we be koshering?
can you be koshering?
can they be koshering? 	can I have koshered?
can you have koshered?
can he have koshered?
can we have koshered?
can you have koshered?
can they have koshered? 	can I have been koshering?
can you have been koshering?
can he have been koshering?
can we have been koshering?
can you have been koshering?
can they have been koshering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not kosher?
can you not kosher?
can he not kosher?
can we not kosher?
can you not kosher?
can they not kosher? 	can I not be koshering?
can you not be koshering?
can he not be koshering?
can we not be koshering?
can you not be koshering?
can they not be koshering? 	can I not have koshered?
can you not have koshered?
can he not have koshered?
can we not have koshered?
can you not have koshered?
can they not have koshered? 	can I not have been koshering?
can you not have been koshering?
can he not have been koshering?
can we not have been koshering?
can you not have been koshering?
can they not have been koshering?