could smuggle
Regular verb: smuggle - smuggled- smuggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could smuggle
you could smuggle
he could smuggle
we could smuggle
you could smuggle
they could smuggle 	I could be smuggling
you could be smuggling
he could be smuggling
we could be smuggling
you could be smuggling
they could be smuggling	I could have smuggled
you could have smuggled
he could have smuggled
we could have smuggled
you could have smuggled
they could have smuggled	I could have been smuggling
you could have been smuggling
he could have been smuggling
we could have been smuggling
you could have been smuggling
they could have been smuggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't smuggle
you couldn't smuggle
he couldn't smuggle
we couldn't smuggle
you couldn't smuggle
they couldn't smuggle 	I couldn't be smuggling
you couldn't be smuggling
he couldn't be smuggling
we couldn't be smuggling
you couldn't be smuggling
they couldn't be smuggling	I couldn't have smuggled
you couldn't have smuggled
he couldn't have smuggled
we couldn't have smuggled
you couldn't have smuggled
they couldn't have smuggled	I couldn't have been smuggling
you couldn't have been smuggling
he couldn't have been smuggling
we couldn't have been smuggling
you couldn't have been smuggling
they couldn't have been smuggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I smuggle?
could you smuggle?
could he smuggle?
could we smuggle?
could you smuggle?
could they smuggle? 	could I be smuggling?
could you be smuggling?
could he be smuggling?
could we be smuggling?
could you be smuggling?
could they be smuggling? 	could I have smuggled?
could you have smuggled?
could he have smuggled?
could we have smuggled?
could you have smuggled?
could they have smuggled? 	could I have been smuggling?
could you have been smuggling?
could he have been smuggling?
could we have been smuggling?
could you have been smuggling?
could they have been smuggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I smuggle?
couldn't you smuggle?
couldn't he smuggle?
couldn't we smuggle?
couldn't you smuggle?
couldn't they smuggle? 	couldn't I be smuggling?
couldn't you be smuggling?
couldn't he be smuggling?
couldn't we be smuggling?
couldn't you be smuggling?
couldn't they be smuggling? 	couldn't I have smuggled?
couldn't you have smuggled?
couldn't he have smuggled?
couldn't we have smuggled?
couldn't you have smuggled?
couldn't they have smuggled? 	couldn't I have been smuggling?
couldn't you have been smuggling?
couldn't he have been smuggling?
couldn't we have been smuggling?
couldn't you have been smuggling?
couldn't they have been smuggling?