can retrograde
Verbe régulier : retrograde - retrograded- retrograded
Traduction française : rétrograder (US) - battre en retraite 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can retrograde
you can retrograde
he can retrograde
we can retrograde
you can retrograde
they can retrograde 	I can be retrograding
you can be retrograding
he can be retrograding
we can be retrograding
you can be retrograding
they can be retrograding	I can have retrograded
you can have retrograded
he can have retrograded
we can have retrograded
you can have retrograded
they can have retrograded	I can have been retrograding
you can have been retrograding
he can have been retrograding
we can have been retrograding
you can have been retrograding
they can have been retrograding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't retrograde
you can't retrograde
he can't retrograde
we can't retrograde
you can't retrograde
they can't retrograde 	I can't be retrograding
you can't be retrograding
he can't be retrograding
we can't be retrograding
you can't be retrograding
they can't be retrograding	I can't have retrograded
you can't have retrograded
he can't have retrograded
we can't have retrograded
you can't have retrograded
they can't have retrograded	I can't have been retrograding
you can't have been retrograding
he can't have been retrograding
we can't have been retrograding
you can't have been retrograding
they can't have been retrograding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I retrograde?
can you retrograde?
can he retrograde?
can we retrograde?
can you retrograde?
can they retrograde? 	can I be retrograding?
can you be retrograding?
can he be retrograding?
can we be retrograding?
can you be retrograding?
can they be retrograding? 	can I have retrograded?
can you have retrograded?
can he have retrograded?
can we have retrograded?
can you have retrograded?
can they have retrograded? 	can I have been retrograding?
can you have been retrograding?
can he have been retrograding?
can we have been retrograding?
can you have been retrograding?
can they have been retrograding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I retrograde?
can't you retrograde?
can't he retrograde?
can't we retrograde?
can't you retrograde?
can't they retrograde? 	can't I be retrograding?
can't you be retrograding?
can't he be retrograding?
can't we be retrograding?
can't you be retrograding?
can't they be retrograding? 	can't I have retrograded?
can't you have retrograded?
can't he have retrograded?
can't we have retrograded?
can't you have retrograded?
can't they have retrograded? 	can't I have been retrograding?
can't you have been retrograding?
can't he have been retrograding?
can't we have been retrograding?
can't you have been retrograding?
can't they have been retrograding?