could oxygenate
Verbe régulier : oxygenate - oxygenated- oxygenated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could oxygenate
you could oxygenate
she could oxygenate
we could oxygenate
you could oxygenate
they could oxygenate 	I could be oxygenating
you could be oxygenating
she could be oxygenating
we could be oxygenating
you could be oxygenating
they could be oxygenating	I could have oxygenated
you could have oxygenated
she could have oxygenated
we could have oxygenated
you could have oxygenated
they could have oxygenated	I could have been oxygenating
you could have been oxygenating
she could have been oxygenating
we could have been oxygenating
you could have been oxygenating
they could have been oxygenating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't oxygenate
you couldn't oxygenate
she couldn't oxygenate
we couldn't oxygenate
you couldn't oxygenate
they couldn't oxygenate 	I couldn't be oxygenating
you couldn't be oxygenating
she couldn't be oxygenating
we couldn't be oxygenating
you couldn't be oxygenating
they couldn't be oxygenating	I couldn't have oxygenated
you couldn't have oxygenated
she couldn't have oxygenated
we couldn't have oxygenated
you couldn't have oxygenated
they couldn't have oxygenated	I couldn't have been oxygenating
you couldn't have been oxygenating
she couldn't have been oxygenating
we couldn't have been oxygenating
you couldn't have been oxygenating
they couldn't have been oxygenating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I oxygenate?
could you oxygenate?
could she oxygenate?
could we oxygenate?
could you oxygenate?
could they oxygenate? 	could I be oxygenating?
could you be oxygenating?
could she be oxygenating?
could we be oxygenating?
could you be oxygenating?
could they be oxygenating? 	could I have oxygenated?
could you have oxygenated?
could she have oxygenated?
could we have oxygenated?
could you have oxygenated?
could they have oxygenated? 	could I have been oxygenating?
could you have been oxygenating?
could she have been oxygenating?
could we have been oxygenating?
could you have been oxygenating?
could they have been oxygenating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I oxygenate?
couldn't you oxygenate?
couldn't she oxygenate?
couldn't we oxygenate?
couldn't you oxygenate?
couldn't they oxygenate? 	couldn't I be oxygenating?
couldn't you be oxygenating?
couldn't she be oxygenating?
couldn't we be oxygenating?
couldn't you be oxygenating?
couldn't they be oxygenating? 	couldn't I have oxygenated?
couldn't you have oxygenated?
couldn't she have oxygenated?
couldn't we have oxygenated?
couldn't you have oxygenated?
couldn't they have oxygenated? 	couldn't I have been oxygenating?
couldn't you have been oxygenating?
couldn't she have been oxygenating?
couldn't we have been oxygenating?
couldn't you have been oxygenating?
couldn't they have been oxygenating?