could corral
Regular verb: corral - corraled- corraled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could corral
you could corral
he could corral
we could corral
you could corral
they could corral 	I could be corraling
you could be corraling
he could be corraling
we could be corraling
you could be corraling
they could be corraling	I could have corraled
you could have corraled
he could have corraled
we could have corraled
you could have corraled
they could have corraled	I could have been corraling
you could have been corraling
he could have been corraling
we could have been corraling
you could have been corraling
they could have been corraling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't corral
you couldn't corral
he couldn't corral
we couldn't corral
you couldn't corral
they couldn't corral 	I couldn't be corraling
you couldn't be corraling
he couldn't be corraling
we couldn't be corraling
you couldn't be corraling
they couldn't be corraling	I couldn't have corraled
you couldn't have corraled
he couldn't have corraled
we couldn't have corraled
you couldn't have corraled
they couldn't have corraled	I couldn't have been corraling
you couldn't have been corraling
he couldn't have been corraling
we couldn't have been corraling
you couldn't have been corraling
they couldn't have been corraling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I corral?
could you corral?
could he corral?
could we corral?
could you corral?
could they corral? 	could I be corraling?
could you be corraling?
could he be corraling?
could we be corraling?
could you be corraling?
could they be corraling? 	could I have corraled?
could you have corraled?
could he have corraled?
could we have corraled?
could you have corraled?
could they have corraled? 	could I have been corraling?
could you have been corraling?
could he have been corraling?
could we have been corraling?
could you have been corraling?
could they have been corraling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I corral?
couldn't you corral?
couldn't he corral?
couldn't we corral?
couldn't you corral?
couldn't they corral? 	couldn't I be corraling?
couldn't you be corraling?
couldn't he be corraling?
couldn't we be corraling?
couldn't you be corraling?
couldn't they be corraling? 	couldn't I have corraled?
couldn't you have corraled?
couldn't he have corraled?
couldn't we have corraled?
couldn't you have corraled?
couldn't they have corraled? 	couldn't I have been corraling?
couldn't you have been corraling?
couldn't he have been corraling?
couldn't we have been corraling?
couldn't you have been corraling?
couldn't they have been corraling?