could plunk
Verbe régulier : plunk - plunked- plunked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could plunk
you could plunk
he could plunk
we could plunk
you could plunk
they could plunk 	I could be plunking
you could be plunking
he could be plunking
we could be plunking
you could be plunking
they could be plunking	I could have plunked
you could have plunked
he could have plunked
we could have plunked
you could have plunked
they could have plunked	I could have been plunking
you could have been plunking
he could have been plunking
we could have been plunking
you could have been plunking
they could have been plunking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't plunk
you couldn't plunk
he couldn't plunk
we couldn't plunk
you couldn't plunk
they couldn't plunk 	I couldn't be plunking
you couldn't be plunking
he couldn't be plunking
we couldn't be plunking
you couldn't be plunking
they couldn't be plunking	I couldn't have plunked
you couldn't have plunked
he couldn't have plunked
we couldn't have plunked
you couldn't have plunked
they couldn't have plunked	I couldn't have been plunking
you couldn't have been plunking
he couldn't have been plunking
we couldn't have been plunking
you couldn't have been plunking
they couldn't have been plunking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I plunk?
could you plunk?
could he plunk?
could we plunk?
could you plunk?
could they plunk? 	could I be plunking?
could you be plunking?
could he be plunking?
could we be plunking?
could you be plunking?
could they be plunking? 	could I have plunked?
could you have plunked?
could he have plunked?
could we have plunked?
could you have plunked?
could they have plunked? 	could I have been plunking?
could you have been plunking?
could he have been plunking?
could we have been plunking?
could you have been plunking?
could they have been plunking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I plunk?
couldn't you plunk?
couldn't he plunk?
couldn't we plunk?
couldn't you plunk?
couldn't they plunk? 	couldn't I be plunking?
couldn't you be plunking?
couldn't he be plunking?
couldn't we be plunking?
couldn't you be plunking?
couldn't they be plunking? 	couldn't I have plunked?
couldn't you have plunked?
couldn't he have plunked?
couldn't we have plunked?
couldn't you have plunked?
couldn't they have plunked? 	couldn't I have been plunking?
couldn't you have been plunking?
couldn't he have been plunking?
couldn't we have been plunking?
couldn't you have been plunking?
couldn't they have been plunking?