could silk
Verbe régulier : silk - silked- silked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could silk
you could silk
she could silk
we could silk
you could silk
they could silk 	I could be silking
you could be silking
she could be silking
we could be silking
you could be silking
they could be silking	I could have silked
you could have silked
she could have silked
we could have silked
you could have silked
they could have silked	I could have been silking
you could have been silking
she could have been silking
we could have been silking
you could have been silking
they could have been silking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't silk
you couldn't silk
she couldn't silk
we couldn't silk
you couldn't silk
they couldn't silk 	I couldn't be silking
you couldn't be silking
she couldn't be silking
we couldn't be silking
you couldn't be silking
they couldn't be silking	I couldn't have silked
you couldn't have silked
she couldn't have silked
we couldn't have silked
you couldn't have silked
they couldn't have silked	I couldn't have been silking
you couldn't have been silking
she couldn't have been silking
we couldn't have been silking
you couldn't have been silking
they couldn't have been silking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I silk?
could you silk?
could she silk?
could we silk?
could you silk?
could they silk? 	could I be silking?
could you be silking?
could she be silking?
could we be silking?
could you be silking?
could they be silking? 	could I have silked?
could you have silked?
could she have silked?
could we have silked?
could you have silked?
could they have silked? 	could I have been silking?
could you have been silking?
could she have been silking?
could we have been silking?
could you have been silking?
could they have been silking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I silk?
couldn't you silk?
couldn't she silk?
couldn't we silk?
couldn't you silk?
couldn't they silk? 	couldn't I be silking?
couldn't you be silking?
couldn't she be silking?
couldn't we be silking?
couldn't you be silking?
couldn't they be silking? 	couldn't I have silked?
couldn't you have silked?
couldn't she have silked?
couldn't we have silked?
couldn't you have silked?
couldn't they have silked? 	couldn't I have been silking?
couldn't you have been silking?
couldn't she have been silking?
couldn't we have been silking?
couldn't you have been silking?
couldn't they have been silking?