can mullion
Regular verb: mullion - mullioned- mullioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can mullion
you can mullion
he can mullion
we can mullion
you can mullion
they can mullion 	I can be mullioning
you can be mullioning
he can be mullioning
we can be mullioning
you can be mullioning
they can be mullioning	I can have mullioned
you can have mullioned
he can have mullioned
we can have mullioned
you can have mullioned
they can have mullioned	I can have been mullioning
you can have been mullioning
he can have been mullioning
we can have been mullioning
you can have been mullioning
they can have been mullioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot mullion
you cannot mullion
he cannot mullion
we cannot mullion
you cannot mullion
they cannot mullion 	I cannot be mullioning
you cannot be mullioning
he cannot be mullioning
we cannot be mullioning
you cannot be mullioning
they cannot be mullioning	I cannot have mullioned
you cannot have mullioned
he cannot have mullioned
we cannot have mullioned
you cannot have mullioned
they cannot have mullioned	I cannot have been mullioning
you cannot have been mullioning
he cannot have been mullioning
we cannot have been mullioning
you cannot have been mullioning
they cannot have been mullioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I mullion?
can you mullion?
can he mullion?
can we mullion?
can you mullion?
can they mullion? 	can I be mullioning?
can you be mullioning?
can he be mullioning?
can we be mullioning?
can you be mullioning?
can they be mullioning? 	can I have mullioned?
can you have mullioned?
can he have mullioned?
can we have mullioned?
can you have mullioned?
can they have mullioned? 	can I have been mullioning?
can you have been mullioning?
can he have been mullioning?
can we have been mullioning?
can you have been mullioning?
can they have been mullioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not mullion?
can you not mullion?
can he not mullion?
can we not mullion?
can you not mullion?
can they not mullion? 	can I not be mullioning?
can you not be mullioning?
can he not be mullioning?
can we not be mullioning?
can you not be mullioning?
can they not be mullioning? 	can I not have mullioned?
can you not have mullioned?
can he not have mullioned?
can we not have mullioned?
can you not have mullioned?
can they not have mullioned? 	can I not have been mullioning?
can you not have been mullioning?
can he not have been mullioning?
can we not have been mullioning?
can you not have been mullioning?
can they not have been mullioning?