could stag
Verbe régulier : stag - staged- staged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could stag
you could stag
he could stag
we could stag
you could stag
they could stag 	I could be staging
you could be staging
he could be staging
we could be staging
you could be staging
they could be staging	I could have staged
you could have staged
he could have staged
we could have staged
you could have staged
they could have staged	I could have been staging
you could have been staging
he could have been staging
we could have been staging
you could have been staging
they could have been staging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't stag
you couldn't stag
he couldn't stag
we couldn't stag
you couldn't stag
they couldn't stag 	I couldn't be staging
you couldn't be staging
he couldn't be staging
we couldn't be staging
you couldn't be staging
they couldn't be staging	I couldn't have staged
you couldn't have staged
he couldn't have staged
we couldn't have staged
you couldn't have staged
they couldn't have staged	I couldn't have been staging
you couldn't have been staging
he couldn't have been staging
we couldn't have been staging
you couldn't have been staging
they couldn't have been staging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I stag?
could you stag?
could he stag?
could we stag?
could you stag?
could they stag? 	could I be staging?
could you be staging?
could he be staging?
could we be staging?
could you be staging?
could they be staging? 	could I have staged?
could you have staged?
could he have staged?
could we have staged?
could you have staged?
could they have staged? 	could I have been staging?
could you have been staging?
could he have been staging?
could we have been staging?
could you have been staging?
could they have been staging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I stag?
couldn't you stag?
couldn't he stag?
couldn't we stag?
couldn't you stag?
couldn't they stag? 	couldn't I be staging?
couldn't you be staging?
couldn't he be staging?
couldn't we be staging?
couldn't you be staging?
couldn't they be staging? 	couldn't I have staged?
couldn't you have staged?
couldn't he have staged?
couldn't we have staged?
couldn't you have staged?
couldn't they have staged? 	couldn't I have been staging?
couldn't you have been staging?
couldn't he have been staging?
couldn't we have been staging?
couldn't you have been staging?
couldn't they have been staging?