must yearn
Verbe régulier : yearn - yearned- yearned
Traduction française : languir - s'attendrir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must yearn
you must yearn
he must yearn
we must yearn
you must yearn
they must yearn 	I must be yearning
you must be yearning
he must be yearning
we must be yearning
you must be yearning
they must be yearning	I must have yearned
you must have yearned
he must have yearned
we must have yearned
you must have yearned
they must have yearned	I must have been yearning
you must have been yearning
he must have been yearning
we must have been yearning
you must have been yearning
they must have been yearning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not yearn
you must not yearn
he must not yearn
we must not yearn
you must not yearn
they must not yearn 	I must not be yearning
you must not be yearning
he must not be yearning
we must not be yearning
you must not be yearning
they must not be yearning	I must not have yearned
you must not have yearned
he must not have yearned
we must not have yearned
you must not have yearned
they must not have yearned	I must not have been yearning
you must not have been yearning
he must not have been yearning
we must not have been yearning
you must not have been yearning
they must not have been yearning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I yearn?
must you yearn?
must he yearn?
must we yearn?
must you yearn?
must they yearn? 	must I be yearning?
must you be yearning?
must he be yearning?
must we be yearning?
must you be yearning?
must they be yearning? 	must I have yearned?
must you have yearned?
must he have yearned?
must we have yearned?
must you have yearned?
must they have yearned? 	must I have been yearning?
must you have been yearning?
must he have been yearning?
must we have been yearning?
must you have been yearning?
must they have been yearning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not yearn?
must you not yearn?
must he not yearn?
must we not yearn?
must you not yearn?
must they not yearn? 	must I not be yearning?
must you not be yearning?
must he not be yearning?
must we not be yearning?
must you not be yearning?
must they not be yearning? 	must I not have yearned?
must you not have yearned?
must he not have yearned?
must we not have yearned?
must you not have yearned?
must they not have yearned? 	must I not have been yearning?
must you not have been yearning?
must he not have been yearning?
must we not have been yearning?
must you not have been yearning?
must they not have been yearning?