could saponify
Regular verb: saponify - saponified- saponified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could saponify
you could saponify
he could saponify
we could saponify
you could saponify
they could saponify 	I could be saponifying
you could be saponifying
he could be saponifying
we could be saponifying
you could be saponifying
they could be saponifying	I could have saponified
you could have saponified
he could have saponified
we could have saponified
you could have saponified
they could have saponified	I could have been saponifying
you could have been saponifying
he could have been saponifying
we could have been saponifying
you could have been saponifying
they could have been saponifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not saponify
you could not saponify
he could not saponify
we could not saponify
you could not saponify
they could not saponify 	I could not be saponifying
you could not be saponifying
he could not be saponifying
we could not be saponifying
you could not be saponifying
they could not be saponifying	I could not have saponified
you could not have saponified
he could not have saponified
we could not have saponified
you could not have saponified
they could not have saponified	I could not have been saponifying
you could not have been saponifying
he could not have been saponifying
we could not have been saponifying
you could not have been saponifying
they could not have been saponifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I saponify?
could you saponify?
could he saponify?
could we saponify?
could you saponify?
could they saponify? 	could I be saponifying?
could you be saponifying?
could he be saponifying?
could we be saponifying?
could you be saponifying?
could they be saponifying? 	could I have saponified?
could you have saponified?
could he have saponified?
could we have saponified?
could you have saponified?
could they have saponified? 	could I have been saponifying?
could you have been saponifying?
could he have been saponifying?
could we have been saponifying?
could you have been saponifying?
could they have been saponifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not saponify?
could you not saponify?
could he not saponify?
could we not saponify?
could you not saponify?
could they not saponify? 	could I not be saponifying?
could you not be saponifying?
could he not be saponifying?
could we not be saponifying?
could you not be saponifying?
could they not be saponifying? 	could I not have saponified?
could you not have saponified?
could he not have saponified?
could we not have saponified?
could you not have saponified?
could they not have saponified? 	could I not have been saponifying?
could you not have been saponifying?
could he not have been saponifying?
could we not have been saponifying?
could you not have been saponifying?
could they not have been saponifying?