could deuterate
Verbe régulier : deuterate - deuterated- deuterated

Affirmation 	
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I could deuterate
you could deuterate
he could deuterate
we could deuterate
you could deuterate
they could deuterate 	I could be deuterating
you could be deuterating
he could be deuterating
we could be deuterating
you could be deuterating
they could be deuterating	I could have deuterated
you could have deuterated
he could have deuterated
we could have deuterated
you could have deuterated
they could have deuterated	I could have been deuterating
you could have been deuterating
he could have been deuterating
we could have been deuterating
you could have been deuterating
they could have been deuterating	

Négation 	
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I couldn't deuterate
you couldn't deuterate
he couldn't deuterate
we couldn't deuterate
you couldn't deuterate
they couldn't deuterate 	I couldn't be deuterating
you couldn't be deuterating
he couldn't be deuterating
we couldn't be deuterating
you couldn't be deuterating
they couldn't be deuterating	I couldn't have deuterated
you couldn't have deuterated
he couldn't have deuterated
we couldn't have deuterated
you couldn't have deuterated
they couldn't have deuterated	I couldn't have been deuterating
you couldn't have been deuterating
he couldn't have been deuterating
we couldn't have been deuterating
you couldn't have been deuterating
they couldn't have been deuterating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I deuterate?
could you deuterate?
could he deuterate?
could we deuterate?
could you deuterate?
could they deuterate? 	could I be deuterating?
could you be deuterating?
could he be deuterating?
could we be deuterating?
could you be deuterating?
could they be deuterating? 	could I have deuterated?
could you have deuterated?
could he have deuterated?
could we have deuterated?
could you have deuterated?
could they have deuterated? 	could I have been deuterating?
could you have been deuterating?
could he have been deuterating?
could we have been deuterating?
could you have been deuterating?
could they have been deuterating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I deuterate?
couldn't you deuterate?
couldn't he deuterate?
couldn't we deuterate?
couldn't you deuterate?
couldn't they deuterate? 	couldn't I be deuterating?
couldn't you be deuterating?
couldn't he be deuterating?
couldn't we be deuterating?
couldn't you be deuterating?
couldn't they be deuterating? 	couldn't I have deuterated?
couldn't you have deuterated?
couldn't he have deuterated?
couldn't we have deuterated?
couldn't you have deuterated?
couldn't they have deuterated? 	couldn't I have been deuterating?
couldn't you have been deuterating?
couldn't he have been deuterating?
couldn't we have been deuterating?
couldn't you have been deuterating?
couldn't they have been deuterating?