could flense
Regular verb: flense - flensed- flensed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could flense
you could flense
he could flense
we could flense
you could flense
they could flense 	I could be flensing
you could be flensing
he could be flensing
we could be flensing
you could be flensing
they could be flensing	I could have flensed
you could have flensed
he could have flensed
we could have flensed
you could have flensed
they could have flensed	I could have been flensing
you could have been flensing
he could have been flensing
we could have been flensing
you could have been flensing
they could have been flensing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not flense
you could not flense
he could not flense
we could not flense
you could not flense
they could not flense 	I could not be flensing
you could not be flensing
he could not be flensing
we could not be flensing
you could not be flensing
they could not be flensing	I could not have flensed
you could not have flensed
he could not have flensed
we could not have flensed
you could not have flensed
they could not have flensed	I could not have been flensing
you could not have been flensing
he could not have been flensing
we could not have been flensing
you could not have been flensing
they could not have been flensing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I flense?
could you flense?
could he flense?
could we flense?
could you flense?
could they flense? 	could I be flensing?
could you be flensing?
could he be flensing?
could we be flensing?
could you be flensing?
could they be flensing? 	could I have flensed?
could you have flensed?
could he have flensed?
could we have flensed?
could you have flensed?
could they have flensed? 	could I have been flensing?
could you have been flensing?
could he have been flensing?
could we have been flensing?
could you have been flensing?
could they have been flensing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not flense?
could you not flense?
could he not flense?
could we not flense?
could you not flense?
could they not flense? 	could I not be flensing?
could you not be flensing?
could he not be flensing?
could we not be flensing?
could you not be flensing?
could they not be flensing? 	could I not have flensed?
could you not have flensed?
could he not have flensed?
could we not have flensed?
could you not have flensed?
could they not have flensed? 	could I not have been flensing?
could you not have been flensing?
could he not have been flensing?
could we not have been flensing?
could you not have been flensing?
could they not have been flensing?