could unleash
Regular verb: unleash - unleashed- unleashed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could unleash
you could unleash
he could unleash
we could unleash
you could unleash
they could unleash 	I could be unleashing
you could be unleashing
he could be unleashing
we could be unleashing
you could be unleashing
they could be unleashing	I could have unleashed
you could have unleashed
he could have unleashed
we could have unleashed
you could have unleashed
they could have unleashed	I could have been unleashing
you could have been unleashing
he could have been unleashing
we could have been unleashing
you could have been unleashing
they could have been unleashing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't unleash
you couldn't unleash
he couldn't unleash
we couldn't unleash
you couldn't unleash
they couldn't unleash 	I couldn't be unleashing
you couldn't be unleashing
he couldn't be unleashing
we couldn't be unleashing
you couldn't be unleashing
they couldn't be unleashing	I couldn't have unleashed
you couldn't have unleashed
he couldn't have unleashed
we couldn't have unleashed
you couldn't have unleashed
they couldn't have unleashed	I couldn't have been unleashing
you couldn't have been unleashing
he couldn't have been unleashing
we couldn't have been unleashing
you couldn't have been unleashing
they couldn't have been unleashing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I unleash?
could you unleash?
could he unleash?
could we unleash?
could you unleash?
could they unleash? 	could I be unleashing?
could you be unleashing?
could he be unleashing?
could we be unleashing?
could you be unleashing?
could they be unleashing? 	could I have unleashed?
could you have unleashed?
could he have unleashed?
could we have unleashed?
could you have unleashed?
could they have unleashed? 	could I have been unleashing?
could you have been unleashing?
could he have been unleashing?
could we have been unleashing?
could you have been unleashing?
could they have been unleashing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I unleash?
couldn't you unleash?
couldn't he unleash?
couldn't we unleash?
couldn't you unleash?
couldn't they unleash? 	couldn't I be unleashing?
couldn't you be unleashing?
couldn't he be unleashing?
couldn't we be unleashing?
couldn't you be unleashing?
couldn't they be unleashing? 	couldn't I have unleashed?
couldn't you have unleashed?
couldn't he have unleashed?
couldn't we have unleashed?
couldn't you have unleashed?
couldn't they have unleashed? 	couldn't I have been unleashing?
couldn't you have been unleashing?
couldn't he have been unleashing?
couldn't we have been unleashing?
couldn't you have been unleashing?
couldn't they have been unleashing?