could rigidify
Regular verb: rigidify - rigidified- rigidified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could rigidify
you could rigidify
he could rigidify
we could rigidify
you could rigidify
they could rigidify 	I could be rigidifying
you could be rigidifying
he could be rigidifying
we could be rigidifying
you could be rigidifying
they could be rigidifying	I could have rigidified
you could have rigidified
he could have rigidified
we could have rigidified
you could have rigidified
they could have rigidified	I could have been rigidifying
you could have been rigidifying
he could have been rigidifying
we could have been rigidifying
you could have been rigidifying
they could have been rigidifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not rigidify
you could not rigidify
he could not rigidify
we could not rigidify
you could not rigidify
they could not rigidify 	I could not be rigidifying
you could not be rigidifying
he could not be rigidifying
we could not be rigidifying
you could not be rigidifying
they could not be rigidifying	I could not have rigidified
you could not have rigidified
he could not have rigidified
we could not have rigidified
you could not have rigidified
they could not have rigidified	I could not have been rigidifying
you could not have been rigidifying
he could not have been rigidifying
we could not have been rigidifying
you could not have been rigidifying
they could not have been rigidifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I rigidify?
could you rigidify?
could he rigidify?
could we rigidify?
could you rigidify?
could they rigidify? 	could I be rigidifying?
could you be rigidifying?
could he be rigidifying?
could we be rigidifying?
could you be rigidifying?
could they be rigidifying? 	could I have rigidified?
could you have rigidified?
could he have rigidified?
could we have rigidified?
could you have rigidified?
could they have rigidified? 	could I have been rigidifying?
could you have been rigidifying?
could he have been rigidifying?
could we have been rigidifying?
could you have been rigidifying?
could they have been rigidifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not rigidify?
could you not rigidify?
could he not rigidify?
could we not rigidify?
could you not rigidify?
could they not rigidify? 	could I not be rigidifying?
could you not be rigidifying?
could he not be rigidifying?
could we not be rigidifying?
could you not be rigidifying?
could they not be rigidifying? 	could I not have rigidified?
could you not have rigidified?
could he not have rigidified?
could we not have rigidified?
could you not have rigidified?
could they not have rigidified? 	could I not have been rigidifying?
could you not have been rigidifying?
could he not have been rigidifying?
could we not have been rigidifying?
could you not have been rigidifying?
could they not have been rigidifying?