could capsule
Regular verb: capsule - capsuled- capsuled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could capsule
you could capsule
he could capsule
we could capsule
you could capsule
they could capsule 	I could be capsuling
you could be capsuling
he could be capsuling
we could be capsuling
you could be capsuling
they could be capsuling	I could have capsuled
you could have capsuled
he could have capsuled
we could have capsuled
you could have capsuled
they could have capsuled	I could have been capsuling
you could have been capsuling
he could have been capsuling
we could have been capsuling
you could have been capsuling
they could have been capsuling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't capsule
you couldn't capsule
he couldn't capsule
we couldn't capsule
you couldn't capsule
they couldn't capsule 	I couldn't be capsuling
you couldn't be capsuling
he couldn't be capsuling
we couldn't be capsuling
you couldn't be capsuling
they couldn't be capsuling	I couldn't have capsuled
you couldn't have capsuled
he couldn't have capsuled
we couldn't have capsuled
you couldn't have capsuled
they couldn't have capsuled	I couldn't have been capsuling
you couldn't have been capsuling
he couldn't have been capsuling
we couldn't have been capsuling
you couldn't have been capsuling
they couldn't have been capsuling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I capsule?
could you capsule?
could he capsule?
could we capsule?
could you capsule?
could they capsule? 	could I be capsuling?
could you be capsuling?
could he be capsuling?
could we be capsuling?
could you be capsuling?
could they be capsuling? 	could I have capsuled?
could you have capsuled?
could he have capsuled?
could we have capsuled?
could you have capsuled?
could they have capsuled? 	could I have been capsuling?
could you have been capsuling?
could he have been capsuling?
could we have been capsuling?
could you have been capsuling?
could they have been capsuling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I capsule?
couldn't you capsule?
couldn't he capsule?
couldn't we capsule?
couldn't you capsule?
couldn't they capsule? 	couldn't I be capsuling?
couldn't you be capsuling?
couldn't he be capsuling?
couldn't we be capsuling?
couldn't you be capsuling?
couldn't they be capsuling? 	couldn't I have capsuled?
couldn't you have capsuled?
couldn't he have capsuled?
couldn't we have capsuled?
couldn't you have capsuled?
couldn't they have capsuled? 	couldn't I have been capsuling?
couldn't you have been capsuling?
couldn't he have been capsuling?
couldn't we have been capsuling?
couldn't you have been capsuling?
couldn't they have been capsuling?