must father
Verbe régulier : father - fathered- fathered
Traduction française : engendrer - attribuer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must father
you must father
he must father
we must father
you must father
they must father 	I must be fathering
you must be fathering
he must be fathering
we must be fathering
you must be fathering
they must be fathering	I must have fathered
you must have fathered
he must have fathered
we must have fathered
you must have fathered
they must have fathered	I must have been fathering
you must have been fathering
he must have been fathering
we must have been fathering
you must have been fathering
they must have been fathering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't father
you mustn't father
he mustn't father
we mustn't father
you mustn't father
they mustn't father 	I mustn't be fathering
you mustn't be fathering
he mustn't be fathering
we mustn't be fathering
you mustn't be fathering
they mustn't be fathering	I mustn't have fathered
you mustn't have fathered
he mustn't have fathered
we mustn't have fathered
you mustn't have fathered
they mustn't have fathered	I mustn't have been fathering
you mustn't have been fathering
he mustn't have been fathering
we mustn't have been fathering
you mustn't have been fathering
they mustn't have been fathering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I father?
must you father?
must he father?
must we father?
must you father?
must they father? 	must I be fathering?
must you be fathering?
must he be fathering?
must we be fathering?
must you be fathering?
must they be fathering? 	must I have fathered?
must you have fathered?
must he have fathered?
must we have fathered?
must you have fathered?
must they have fathered? 	must I have been fathering?
must you have been fathering?
must he have been fathering?
must we have been fathering?
must you have been fathering?
must they have been fathering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I father?
mustn't you father?
mustn't he father?
mustn't we father?
mustn't you father?
mustn't they father? 	mustn't I be fathering?
mustn't you be fathering?
mustn't he be fathering?
mustn't we be fathering?
mustn't you be fathering?
mustn't they be fathering? 	mustn't I have fathered?
mustn't you have fathered?
mustn't he have fathered?
mustn't we have fathered?
mustn't you have fathered?
mustn't they have fathered? 	mustn't I have been fathering?
mustn't you have been fathering?
mustn't he have been fathering?
mustn't we have been fathering?
mustn't you have been fathering?
mustn't they have been fathering?