could acidify
Verbe régulier : acidify - acidified- acidified

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could acidify
you could acidify
he could acidify
we could acidify
you could acidify
they could acidify 	I could be acidifying
you could be acidifying
he could be acidifying
we could be acidifying
you could be acidifying
they could be acidifying	I could have acidified
you could have acidified
he could have acidified
we could have acidified
you could have acidified
they could have acidified	I could have been acidifying
you could have been acidifying
he could have been acidifying
we could have been acidifying
you could have been acidifying
they could have been acidifying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not acidify
you could not acidify
he could not acidify
we could not acidify
you could not acidify
they could not acidify 	I could not be acidifying
you could not be acidifying
he could not be acidifying
we could not be acidifying
you could not be acidifying
they could not be acidifying	I could not have acidified
you could not have acidified
he could not have acidified
we could not have acidified
you could not have acidified
they could not have acidified	I could not have been acidifying
you could not have been acidifying
he could not have been acidifying
we could not have been acidifying
you could not have been acidifying
they could not have been acidifying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I acidify?
could you acidify?
could he acidify?
could we acidify?
could you acidify?
could they acidify? 	could I be acidifying?
could you be acidifying?
could he be acidifying?
could we be acidifying?
could you be acidifying?
could they be acidifying? 	could I have acidified?
could you have acidified?
could he have acidified?
could we have acidified?
could you have acidified?
could they have acidified? 	could I have been acidifying?
could you have been acidifying?
could he have been acidifying?
could we have been acidifying?
could you have been acidifying?
could they have been acidifying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not acidify?
could you not acidify?
could he not acidify?
could we not acidify?
could you not acidify?
could they not acidify? 	could I not be acidifying?
could you not be acidifying?
could he not be acidifying?
could we not be acidifying?
could you not be acidifying?
could they not be acidifying? 	could I not have acidified?
could you not have acidified?
could he not have acidified?
could we not have acidified?
could you not have acidified?
could they not have acidified? 	could I not have been acidifying?
could you not have been acidifying?
could he not have been acidifying?
could we not have been acidifying?
could you not have been acidifying?
could they not have been acidifying?