could gobble
Regular verb: gobble - gobbled- gobbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could gobble
you could gobble
he could gobble
we could gobble
you could gobble
they could gobble 	I could be gobbling
you could be gobbling
he could be gobbling
we could be gobbling
you could be gobbling
they could be gobbling	I could have gobbled
you could have gobbled
he could have gobbled
we could have gobbled
you could have gobbled
they could have gobbled	I could have been gobbling
you could have been gobbling
he could have been gobbling
we could have been gobbling
you could have been gobbling
they could have been gobbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't gobble
you couldn't gobble
he couldn't gobble
we couldn't gobble
you couldn't gobble
they couldn't gobble 	I couldn't be gobbling
you couldn't be gobbling
he couldn't be gobbling
we couldn't be gobbling
you couldn't be gobbling
they couldn't be gobbling	I couldn't have gobbled
you couldn't have gobbled
he couldn't have gobbled
we couldn't have gobbled
you couldn't have gobbled
they couldn't have gobbled	I couldn't have been gobbling
you couldn't have been gobbling
he couldn't have been gobbling
we couldn't have been gobbling
you couldn't have been gobbling
they couldn't have been gobbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I gobble?
could you gobble?
could he gobble?
could we gobble?
could you gobble?
could they gobble? 	could I be gobbling?
could you be gobbling?
could he be gobbling?
could we be gobbling?
could you be gobbling?
could they be gobbling? 	could I have gobbled?
could you have gobbled?
could he have gobbled?
could we have gobbled?
could you have gobbled?
could they have gobbled? 	could I have been gobbling?
could you have been gobbling?
could he have been gobbling?
could we have been gobbling?
could you have been gobbling?
could they have been gobbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I gobble?
couldn't you gobble?
couldn't he gobble?
couldn't we gobble?
couldn't you gobble?
couldn't they gobble? 	couldn't I be gobbling?
couldn't you be gobbling?
couldn't he be gobbling?
couldn't we be gobbling?
couldn't you be gobbling?
couldn't they be gobbling? 	couldn't I have gobbled?
couldn't you have gobbled?
couldn't he have gobbled?
couldn't we have gobbled?
couldn't you have gobbled?
couldn't they have gobbled? 	couldn't I have been gobbling?
couldn't you have been gobbling?
couldn't he have been gobbling?
couldn't we have been gobbling?
couldn't you have been gobbling?
couldn't they have been gobbling?