could nickel
Regular verb: nickel - nickelled- nickelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could nickel
you could nickel
he could nickel
we could nickel
you could nickel
they could nickel 	I could be nickelling
you could be nickelling
he could be nickelling
we could be nickelling
you could be nickelling
they could be nickelling	I could have nickelled
you could have nickelled
he could have nickelled
we could have nickelled
you could have nickelled
they could have nickelled	I could have been nickelling
you could have been nickelling
he could have been nickelling
we could have been nickelling
you could have been nickelling
they could have been nickelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't nickel
you couldn't nickel
he couldn't nickel
we couldn't nickel
you couldn't nickel
they couldn't nickel 	I couldn't be nickelling
you couldn't be nickelling
he couldn't be nickelling
we couldn't be nickelling
you couldn't be nickelling
they couldn't be nickelling	I couldn't have nickelled
you couldn't have nickelled
he couldn't have nickelled
we couldn't have nickelled
you couldn't have nickelled
they couldn't have nickelled	I couldn't have been nickelling
you couldn't have been nickelling
he couldn't have been nickelling
we couldn't have been nickelling
you couldn't have been nickelling
they couldn't have been nickelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I nickel?
could you nickel?
could he nickel?
could we nickel?
could you nickel?
could they nickel? 	could I be nickelling?
could you be nickelling?
could he be nickelling?
could we be nickelling?
could you be nickelling?
could they be nickelling? 	could I have nickelled?
could you have nickelled?
could he have nickelled?
could we have nickelled?
could you have nickelled?
could they have nickelled? 	could I have been nickelling?
could you have been nickelling?
could he have been nickelling?
could we have been nickelling?
could you have been nickelling?
could they have been nickelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I nickel?
couldn't you nickel?
couldn't he nickel?
couldn't we nickel?
couldn't you nickel?
couldn't they nickel? 	couldn't I be nickelling?
couldn't you be nickelling?
couldn't he be nickelling?
couldn't we be nickelling?
couldn't you be nickelling?
couldn't they be nickelling? 	couldn't I have nickelled?
couldn't you have nickelled?
couldn't he have nickelled?
couldn't we have nickelled?
couldn't you have nickelled?
couldn't they have nickelled? 	couldn't I have been nickelling?
couldn't you have been nickelling?
couldn't he have been nickelling?
couldn't we have been nickelling?
couldn't you have been nickelling?
couldn't they have been nickelling?