could transform
Regular verb: transform - transformed- transformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could transform
you could transform
he could transform
we could transform
you could transform
they could transform 	I could be transforming
you could be transforming
he could be transforming
we could be transforming
you could be transforming
they could be transforming	I could have transformed
you could have transformed
he could have transformed
we could have transformed
you could have transformed
they could have transformed	I could have been transforming
you could have been transforming
he could have been transforming
we could have been transforming
you could have been transforming
they could have been transforming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not transform
you could not transform
he could not transform
we could not transform
you could not transform
they could not transform 	I could not be transforming
you could not be transforming
he could not be transforming
we could not be transforming
you could not be transforming
they could not be transforming	I could not have transformed
you could not have transformed
he could not have transformed
we could not have transformed
you could not have transformed
they could not have transformed	I could not have been transforming
you could not have been transforming
he could not have been transforming
we could not have been transforming
you could not have been transforming
they could not have been transforming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I transform?
could you transform?
could he transform?
could we transform?
could you transform?
could they transform? 	could I be transforming?
could you be transforming?
could he be transforming?
could we be transforming?
could you be transforming?
could they be transforming? 	could I have transformed?
could you have transformed?
could he have transformed?
could we have transformed?
could you have transformed?
could they have transformed? 	could I have been transforming?
could you have been transforming?
could he have been transforming?
could we have been transforming?
could you have been transforming?
could they have been transforming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not transform?
could you not transform?
could he not transform?
could we not transform?
could you not transform?
could they not transform? 	could I not be transforming?
could you not be transforming?
could he not be transforming?
could we not be transforming?
could you not be transforming?
could they not be transforming? 	could I not have transformed?
could you not have transformed?
could he not have transformed?
could we not have transformed?
could you not have transformed?
could they not have transformed? 	could I not have been transforming?
could you not have been transforming?
could he not have been transforming?
could we not have been transforming?
could you not have been transforming?
could they not have been transforming?