could devitrify
Verbe régulier : devitrify - devitrified- devitrified

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could devitrify
you could devitrify
she could devitrify
we could devitrify
you could devitrify
they could devitrify 	I could be devitrifying
you could be devitrifying
she could be devitrifying
we could be devitrifying
you could be devitrifying
they could be devitrifying	I could have devitrified
you could have devitrified
she could have devitrified
we could have devitrified
you could have devitrified
they could have devitrified	I could have been devitrifying
you could have been devitrifying
she could have been devitrifying
we could have been devitrifying
you could have been devitrifying
they could have been devitrifying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't devitrify
you couldn't devitrify
she couldn't devitrify
we couldn't devitrify
you couldn't devitrify
they couldn't devitrify 	I couldn't be devitrifying
you couldn't be devitrifying
she couldn't be devitrifying
we couldn't be devitrifying
you couldn't be devitrifying
they couldn't be devitrifying	I couldn't have devitrified
you couldn't have devitrified
she couldn't have devitrified
we couldn't have devitrified
you couldn't have devitrified
they couldn't have devitrified	I couldn't have been devitrifying
you couldn't have been devitrifying
she couldn't have been devitrifying
we couldn't have been devitrifying
you couldn't have been devitrifying
they couldn't have been devitrifying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I devitrify?
could you devitrify?
could she devitrify?
could we devitrify?
could you devitrify?
could they devitrify? 	could I be devitrifying?
could you be devitrifying?
could she be devitrifying?
could we be devitrifying?
could you be devitrifying?
could they be devitrifying? 	could I have devitrified?
could you have devitrified?
could she have devitrified?
could we have devitrified?
could you have devitrified?
could they have devitrified? 	could I have been devitrifying?
could you have been devitrifying?
could she have been devitrifying?
could we have been devitrifying?
could you have been devitrifying?
could they have been devitrifying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I devitrify?
couldn't you devitrify?
couldn't she devitrify?
couldn't we devitrify?
couldn't you devitrify?
couldn't they devitrify? 	couldn't I be devitrifying?
couldn't you be devitrifying?
couldn't she be devitrifying?
couldn't we be devitrifying?
couldn't you be devitrifying?
couldn't they be devitrifying? 	couldn't I have devitrified?
couldn't you have devitrified?
couldn't she have devitrified?
couldn't we have devitrified?
couldn't you have devitrified?
couldn't they have devitrified? 	couldn't I have been devitrifying?
couldn't you have been devitrifying?
couldn't she have been devitrifying?
couldn't we have been devitrifying?
couldn't you have been devitrifying?
couldn't they have been devitrifying?