could showcase
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Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could showcase
you could showcase
she could showcase
we could showcase
you could showcase
they could showcase 	I could be showcasing
you could be showcasing
she could be showcasing
we could be showcasing
you could be showcasing
they could be showcasing	I could have showcased
you could have showcased
she could have showcased
we could have showcased
you could have showcased
they could have showcased	I could have been showcasing
you could have been showcasing
she could have been showcasing
we could have been showcasing
you could have been showcasing
they could have been showcasing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't showcase
you couldn't showcase
she couldn't showcase
we couldn't showcase
you couldn't showcase
they couldn't showcase 	I couldn't be showcasing
you couldn't be showcasing
she couldn't be showcasing
we couldn't be showcasing
you couldn't be showcasing
they couldn't be showcasing	I couldn't have showcased
you couldn't have showcased
she couldn't have showcased
we couldn't have showcased
you couldn't have showcased
they couldn't have showcased	I couldn't have been showcasing
you couldn't have been showcasing
she couldn't have been showcasing
we couldn't have been showcasing
you couldn't have been showcasing
they couldn't have been showcasing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I showcase?
could you showcase?
could she showcase?
could we showcase?
could you showcase?
could they showcase? 	could I be showcasing?
could you be showcasing?
could she be showcasing?
could we be showcasing?
could you be showcasing?
could they be showcasing? 	could I have showcased?
could you have showcased?
could she have showcased?
could we have showcased?
could you have showcased?
could they have showcased? 	could I have been showcasing?
could you have been showcasing?
could she have been showcasing?
could we have been showcasing?
could you have been showcasing?
could they have been showcasing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I showcase?
couldn't you showcase?
couldn't she showcase?
couldn't we showcase?
couldn't you showcase?
couldn't they showcase? 	couldn't I be showcasing?
couldn't you be showcasing?
couldn't she be showcasing?
couldn't we be showcasing?
couldn't you be showcasing?
couldn't they be showcasing? 	couldn't I have showcased?
couldn't you have showcased?
couldn't she have showcased?
couldn't we have showcased?
couldn't you have showcased?
couldn't they have showcased? 	couldn't I have been showcasing?
couldn't you have been showcasing?
couldn't she have been showcasing?
couldn't we have been showcasing?
couldn't you have been showcasing?
couldn't they have been showcasing?