must long
Verbe régulier : long - longed- longed
Traduction française : soupirer après 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must long
you must long
he must long
we must long
you must long
they must long 	I must be longing
you must be longing
he must be longing
we must be longing
you must be longing
they must be longing	I must have longed
you must have longed
he must have longed
we must have longed
you must have longed
they must have longed	I must have been longing
you must have been longing
he must have been longing
we must have been longing
you must have been longing
they must have been longing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not long
you must not long
he must not long
we must not long
you must not long
they must not long 	I must not be longing
you must not be longing
he must not be longing
we must not be longing
you must not be longing
they must not be longing	I must not have longed
you must not have longed
he must not have longed
we must not have longed
you must not have longed
they must not have longed	I must not have been longing
you must not have been longing
he must not have been longing
we must not have been longing
you must not have been longing
they must not have been longing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I long?
must you long?
must he long?
must we long?
must you long?
must they long? 	must I be longing?
must you be longing?
must he be longing?
must we be longing?
must you be longing?
must they be longing? 	must I have longed?
must you have longed?
must he have longed?
must we have longed?
must you have longed?
must they have longed? 	must I have been longing?
must you have been longing?
must he have been longing?
must we have been longing?
must you have been longing?
must they have been longing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not long?
must you not long?
must he not long?
must we not long?
must you not long?
must they not long? 	must I not be longing?
must you not be longing?
must he not be longing?
must we not be longing?
must you not be longing?
must they not be longing? 	must I not have longed?
must you not have longed?
must he not have longed?
must we not have longed?
must you not have longed?
must they not have longed? 	must I not have been longing?
must you not have been longing?
must he not have been longing?
must we not have been longing?
must you not have been longing?
must they not have been longing?