must obtund
Verbe régulier : obtund - obtunded- obtunded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must obtund
you must obtund
he must obtund
we must obtund
you must obtund
they must obtund 	I must be obtunding
you must be obtunding
he must be obtunding
we must be obtunding
you must be obtunding
they must be obtunding	I must have obtunded
you must have obtunded
he must have obtunded
we must have obtunded
you must have obtunded
they must have obtunded	I must have been obtunding
you must have been obtunding
he must have been obtunding
we must have been obtunding
you must have been obtunding
they must have been obtunding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't obtund
you mustn't obtund
he mustn't obtund
we mustn't obtund
you mustn't obtund
they mustn't obtund 	I mustn't be obtunding
you mustn't be obtunding
he mustn't be obtunding
we mustn't be obtunding
you mustn't be obtunding
they mustn't be obtunding	I mustn't have obtunded
you mustn't have obtunded
he mustn't have obtunded
we mustn't have obtunded
you mustn't have obtunded
they mustn't have obtunded	I mustn't have been obtunding
you mustn't have been obtunding
he mustn't have been obtunding
we mustn't have been obtunding
you mustn't have been obtunding
they mustn't have been obtunding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I obtund?
must you obtund?
must he obtund?
must we obtund?
must you obtund?
must they obtund? 	must I be obtunding?
must you be obtunding?
must he be obtunding?
must we be obtunding?
must you be obtunding?
must they be obtunding? 	must I have obtunded?
must you have obtunded?
must he have obtunded?
must we have obtunded?
must you have obtunded?
must they have obtunded? 	must I have been obtunding?
must you have been obtunding?
must he have been obtunding?
must we have been obtunding?
must you have been obtunding?
must they have been obtunding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I obtund?
mustn't you obtund?
mustn't he obtund?
mustn't we obtund?
mustn't you obtund?
mustn't they obtund? 	mustn't I be obtunding?
mustn't you be obtunding?
mustn't he be obtunding?
mustn't we be obtunding?
mustn't you be obtunding?
mustn't they be obtunding? 	mustn't I have obtunded?
mustn't you have obtunded?
mustn't he have obtunded?
mustn't we have obtunded?
mustn't you have obtunded?
mustn't they have obtunded? 	mustn't I have been obtunding?
mustn't you have been obtunding?
mustn't he have been obtunding?
mustn't we have been obtunding?
mustn't you have been obtunding?
mustn't they have been obtunding?