could chalk
Verbe régulier : chalk - chalked- chalked
Traduction française : écrire à la craie - marquer à la craie 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could chalk
you could chalk
he could chalk
we could chalk
you could chalk
they could chalk 	I could be chalking
you could be chalking
he could be chalking
we could be chalking
you could be chalking
they could be chalking	I could have chalked
you could have chalked
he could have chalked
we could have chalked
you could have chalked
they could have chalked	I could have been chalking
you could have been chalking
he could have been chalking
we could have been chalking
you could have been chalking
they could have been chalking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't chalk
you couldn't chalk
he couldn't chalk
we couldn't chalk
you couldn't chalk
they couldn't chalk 	I couldn't be chalking
you couldn't be chalking
he couldn't be chalking
we couldn't be chalking
you couldn't be chalking
they couldn't be chalking	I couldn't have chalked
you couldn't have chalked
he couldn't have chalked
we couldn't have chalked
you couldn't have chalked
they couldn't have chalked	I couldn't have been chalking
you couldn't have been chalking
he couldn't have been chalking
we couldn't have been chalking
you couldn't have been chalking
they couldn't have been chalking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I chalk?
could you chalk?
could he chalk?
could we chalk?
could you chalk?
could they chalk? 	could I be chalking?
could you be chalking?
could he be chalking?
could we be chalking?
could you be chalking?
could they be chalking? 	could I have chalked?
could you have chalked?
could he have chalked?
could we have chalked?
could you have chalked?
could they have chalked? 	could I have been chalking?
could you have been chalking?
could he have been chalking?
could we have been chalking?
could you have been chalking?
could they have been chalking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I chalk?
couldn't you chalk?
couldn't he chalk?
couldn't we chalk?
couldn't you chalk?
couldn't they chalk? 	couldn't I be chalking?
couldn't you be chalking?
couldn't he be chalking?
couldn't we be chalking?
couldn't you be chalking?
couldn't they be chalking? 	couldn't I have chalked?
couldn't you have chalked?
couldn't he have chalked?
couldn't we have chalked?
couldn't you have chalked?
couldn't they have chalked? 	couldn't I have been chalking?
couldn't you have been chalking?
couldn't he have been chalking?
couldn't we have been chalking?
couldn't you have been chalking?
couldn't they have been chalking?