could prologue
Verbe régulier : prologue - prologued- prologued

Affirmation 	
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I could prologue
you could prologue
she could prologue
we could prologue
you could prologue
they could prologue 	I could be prologuing
you could be prologuing
she could be prologuing
we could be prologuing
you could be prologuing
they could be prologuing	I could have prologued
you could have prologued
she could have prologued
we could have prologued
you could have prologued
they could have prologued	I could have been prologuing
you could have been prologuing
she could have been prologuing
we could have been prologuing
you could have been prologuing
they could have been prologuing	

Négation 	
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I couldn't prologue
you couldn't prologue
she couldn't prologue
we couldn't prologue
you couldn't prologue
they couldn't prologue 	I couldn't be prologuing
you couldn't be prologuing
she couldn't be prologuing
we couldn't be prologuing
you couldn't be prologuing
they couldn't be prologuing	I couldn't have prologued
you couldn't have prologued
she couldn't have prologued
we couldn't have prologued
you couldn't have prologued
they couldn't have prologued	I couldn't have been prologuing
you couldn't have been prologuing
she couldn't have been prologuing
we couldn't have been prologuing
you couldn't have been prologuing
they couldn't have been prologuing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I prologue?
could you prologue?
could she prologue?
could we prologue?
could you prologue?
could they prologue? 	could I be prologuing?
could you be prologuing?
could she be prologuing?
could we be prologuing?
could you be prologuing?
could they be prologuing? 	could I have prologued?
could you have prologued?
could she have prologued?
could we have prologued?
could you have prologued?
could they have prologued? 	could I have been prologuing?
could you have been prologuing?
could she have been prologuing?
could we have been prologuing?
could you have been prologuing?
could they have been prologuing? 	

Forme interro-négative 	
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couldn't I prologue?
couldn't you prologue?
couldn't she prologue?
couldn't we prologue?
couldn't you prologue?
couldn't they prologue? 	couldn't I be prologuing?
couldn't you be prologuing?
couldn't she be prologuing?
couldn't we be prologuing?
couldn't you be prologuing?
couldn't they be prologuing? 	couldn't I have prologued?
couldn't you have prologued?
couldn't she have prologued?
couldn't we have prologued?
couldn't you have prologued?
couldn't they have prologued? 	couldn't I have been prologuing?
couldn't you have been prologuing?
couldn't she have been prologuing?
couldn't we have been prologuing?
couldn't you have been prologuing?
couldn't they have been prologuing?