could skank
Verbe régulier : skank - skanked- skanked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could skank
you could skank
he could skank
we could skank
you could skank
they could skank 	I could be skanking
you could be skanking
he could be skanking
we could be skanking
you could be skanking
they could be skanking	I could have skanked
you could have skanked
he could have skanked
we could have skanked
you could have skanked
they could have skanked	I could have been skanking
you could have been skanking
he could have been skanking
we could have been skanking
you could have been skanking
they could have been skanking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't skank
you couldn't skank
he couldn't skank
we couldn't skank
you couldn't skank
they couldn't skank 	I couldn't be skanking
you couldn't be skanking
he couldn't be skanking
we couldn't be skanking
you couldn't be skanking
they couldn't be skanking	I couldn't have skanked
you couldn't have skanked
he couldn't have skanked
we couldn't have skanked
you couldn't have skanked
they couldn't have skanked	I couldn't have been skanking
you couldn't have been skanking
he couldn't have been skanking
we couldn't have been skanking
you couldn't have been skanking
they couldn't have been skanking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I skank?
could you skank?
could he skank?
could we skank?
could you skank?
could they skank? 	could I be skanking?
could you be skanking?
could he be skanking?
could we be skanking?
could you be skanking?
could they be skanking? 	could I have skanked?
could you have skanked?
could he have skanked?
could we have skanked?
could you have skanked?
could they have skanked? 	could I have been skanking?
could you have been skanking?
could he have been skanking?
could we have been skanking?
could you have been skanking?
could they have been skanking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I skank?
couldn't you skank?
couldn't he skank?
couldn't we skank?
couldn't you skank?
couldn't they skank? 	couldn't I be skanking?
couldn't you be skanking?
couldn't he be skanking?
couldn't we be skanking?
couldn't you be skanking?
couldn't they be skanking? 	couldn't I have skanked?
couldn't you have skanked?
couldn't he have skanked?
couldn't we have skanked?
couldn't you have skanked?
couldn't they have skanked? 	couldn't I have been skanking?
couldn't you have been skanking?
couldn't he have been skanking?
couldn't we have been skanking?
couldn't you have been skanking?
couldn't they have been skanking?