must straighten
Verbe régulier : straighten - straightened- straightened
Traduction française : redresser - se dresser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must straighten
you must straighten
he must straighten
we must straighten
you must straighten
they must straighten 	I must be straightening
you must be straightening
he must be straightening
we must be straightening
you must be straightening
they must be straightening	I must have straightened
you must have straightened
he must have straightened
we must have straightened
you must have straightened
they must have straightened	I must have been straightening
you must have been straightening
he must have been straightening
we must have been straightening
you must have been straightening
they must have been straightening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not straighten
you must not straighten
he must not straighten
we must not straighten
you must not straighten
they must not straighten 	I must not be straightening
you must not be straightening
he must not be straightening
we must not be straightening
you must not be straightening
they must not be straightening	I must not have straightened
you must not have straightened
he must not have straightened
we must not have straightened
you must not have straightened
they must not have straightened	I must not have been straightening
you must not have been straightening
he must not have been straightening
we must not have been straightening
you must not have been straightening
they must not have been straightening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I straighten?
must you straighten?
must he straighten?
must we straighten?
must you straighten?
must they straighten? 	must I be straightening?
must you be straightening?
must he be straightening?
must we be straightening?
must you be straightening?
must they be straightening? 	must I have straightened?
must you have straightened?
must he have straightened?
must we have straightened?
must you have straightened?
must they have straightened? 	must I have been straightening?
must you have been straightening?
must he have been straightening?
must we have been straightening?
must you have been straightening?
must they have been straightening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not straighten?
must you not straighten?
must he not straighten?
must we not straighten?
must you not straighten?
must they not straighten? 	must I not be straightening?
must you not be straightening?
must he not be straightening?
must we not be straightening?
must you not be straightening?
must they not be straightening? 	must I not have straightened?
must you not have straightened?
must he not have straightened?
must we not have straightened?
must you not have straightened?
must they not have straightened? 	must I not have been straightening?
must you not have been straightening?
must he not have been straightening?
must we not have been straightening?
must you not have been straightening?
must they not have been straightening?