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 couldn't saponify
you couldn't saponify
he couldn't saponify
we couldn't saponify
you couldn't saponify
they couldn't saponify 	I couldn't be saponifying
you couldn't be saponifying
he couldn't be saponifying
we couldn't be saponifying
you couldn't be saponifying
they couldn't be saponifying	I couldn't have saponified
you couldn't have saponified
he couldn't have saponified
we couldn't have saponified
you couldn't have saponified
they couldn't have saponified	I couldn't have been saponifying
you couldn't have been saponifying
he couldn't have been saponifying
we couldn't have been saponifying
you couldn't have been saponifying
they couldn't 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 	
couldn't I saponify?
couldn't you saponify?
couldn't he saponify?
couldn't we saponify?
couldn't you saponify?
couldn't they saponify? 	couldn't I be saponifying?
couldn't you be saponifying?
couldn't he be saponifying?
couldn't we be saponifying?
couldn't you be saponifying?
couldn't they be saponifying? 	couldn't I have saponified?
couldn't you have saponified?
couldn't he have saponified?
couldn't we have saponified?
couldn't you have saponified?
couldn't they have saponified? 	couldn't I have been saponifying?
couldn't you have been saponifying?
couldn't he have been saponifying?
couldn't we have been saponifying?
couldn't you have been saponifying?
couldn't they have been saponifying?