can upturn
Verbe régulier : upturn - upturned- upturned
Traduction française : retourner - mettre à l'envers 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can upturn
you can upturn
he can upturn
we can upturn
you can upturn
they can upturn 	I can be upturning
you can be upturning
he can be upturning
we can be upturning
you can be upturning
they can be upturning	I can have upturned
you can have upturned
he can have upturned
we can have upturned
you can have upturned
they can have upturned	I can have been upturning
you can have been upturning
he can have been upturning
we can have been upturning
you can have been upturning
they can have been upturning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't upturn
you can't upturn
he can't upturn
we can't upturn
you can't upturn
they can't upturn 	I can't be upturning
you can't be upturning
he can't be upturning
we can't be upturning
you can't be upturning
they can't be upturning	I can't have upturned
you can't have upturned
he can't have upturned
we can't have upturned
you can't have upturned
they can't have upturned	I can't have been upturning
you can't have been upturning
he can't have been upturning
we can't have been upturning
you can't have been upturning
they can't have been upturning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I upturn?
can you upturn?
can he upturn?
can we upturn?
can you upturn?
can they upturn? 	can I be upturning?
can you be upturning?
can he be upturning?
can we be upturning?
can you be upturning?
can they be upturning? 	can I have upturned?
can you have upturned?
can he have upturned?
can we have upturned?
can you have upturned?
can they have upturned? 	can I have been upturning?
can you have been upturning?
can he have been upturning?
can we have been upturning?
can you have been upturning?
can they have been upturning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I upturn?
can't you upturn?
can't he upturn?
can't we upturn?
can't you upturn?
can't they upturn? 	can't I be upturning?
can't you be upturning?
can't he be upturning?
can't we be upturning?
can't you be upturning?
can't they be upturning? 	can't I have upturned?
can't you have upturned?
can't he have upturned?
can't we have upturned?
can't you have upturned?
can't they have upturned? 	can't I have been upturning?
can't you have been upturning?
can't he have been upturning?
can't we have been upturning?
can't you have been upturning?
can't they have been upturning?