could retestify
Verbe régulier : retestify - retestified- retestified

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could retestify
you could retestify
he could retestify
we could retestify
you could retestify
they could retestify 	I could be retestifying
you could be retestifying
he could be retestifying
we could be retestifying
you could be retestifying
they could be retestifying	I could have retestified
you could have retestified
he could have retestified
we could have retestified
you could have retestified
they could have retestified	I could have been retestifying
you could have been retestifying
he could have been retestifying
we could have been retestifying
you could have been retestifying
they could have been retestifying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't retestify
you couldn't retestify
he couldn't retestify
we couldn't retestify
you couldn't retestify
they couldn't retestify 	I couldn't be retestifying
you couldn't be retestifying
he couldn't be retestifying
we couldn't be retestifying
you couldn't be retestifying
they couldn't be retestifying	I couldn't have retestified
you couldn't have retestified
he couldn't have retestified
we couldn't have retestified
you couldn't have retestified
they couldn't have retestified	I couldn't have been retestifying
you couldn't have been retestifying
he couldn't have been retestifying
we couldn't have been retestifying
you couldn't have been retestifying
they couldn't have been retestifying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I retestify?
could you retestify?
could he retestify?
could we retestify?
could you retestify?
could they retestify? 	could I be retestifying?
could you be retestifying?
could he be retestifying?
could we be retestifying?
could you be retestifying?
could they be retestifying? 	could I have retestified?
could you have retestified?
could he have retestified?
could we have retestified?
could you have retestified?
could they have retestified? 	could I have been retestifying?
could you have been retestifying?
could he have been retestifying?
could we have been retestifying?
could you have been retestifying?
could they have been retestifying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I retestify?
couldn't you retestify?
couldn't he retestify?
couldn't we retestify?
couldn't you retestify?
couldn't they retestify? 	couldn't I be retestifying?
couldn't you be retestifying?
couldn't he be retestifying?
couldn't we be retestifying?
couldn't you be retestifying?
couldn't they be retestifying? 	couldn't I have retestified?
couldn't you have retestified?
couldn't he have retestified?
couldn't we have retestified?
couldn't you have retestified?
couldn't they have retestified? 	couldn't I have been retestifying?
couldn't you have been retestifying?
couldn't he have been retestifying?
couldn't we have been retestifying?
couldn't you have been retestifying?
couldn't they have been retestifying?