must precode
Verbe régulier : precode - precoded- precoded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must precode
you must precode
he must precode
we must precode
you must precode
they must precode 	I must be precoding
you must be precoding
he must be precoding
we must be precoding
you must be precoding
they must be precoding	I must have precoded
you must have precoded
he must have precoded
we must have precoded
you must have precoded
they must have precoded	I must have been precoding
you must have been precoding
he must have been precoding
we must have been precoding
you must have been precoding
they must have been precoding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't precode
you mustn't precode
he mustn't precode
we mustn't precode
you mustn't precode
they mustn't precode 	I mustn't be precoding
you mustn't be precoding
he mustn't be precoding
we mustn't be precoding
you mustn't be precoding
they mustn't be precoding	I mustn't have precoded
you mustn't have precoded
he mustn't have precoded
we mustn't have precoded
you mustn't have precoded
they mustn't have precoded	I mustn't have been precoding
you mustn't have been precoding
he mustn't have been precoding
we mustn't have been precoding
you mustn't have been precoding
they mustn't have been precoding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I precode?
must you precode?
must he precode?
must we precode?
must you precode?
must they precode? 	must I be precoding?
must you be precoding?
must he be precoding?
must we be precoding?
must you be precoding?
must they be precoding? 	must I have precoded?
must you have precoded?
must he have precoded?
must we have precoded?
must you have precoded?
must they have precoded? 	must I have been precoding?
must you have been precoding?
must he have been precoding?
must we have been precoding?
must you have been precoding?
must they have been precoding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I precode?
mustn't you precode?
mustn't he precode?
mustn't we precode?
mustn't you precode?
mustn't they precode? 	mustn't I be precoding?
mustn't you be precoding?
mustn't he be precoding?
mustn't we be precoding?
mustn't you be precoding?
mustn't they be precoding? 	mustn't I have precoded?
mustn't you have precoded?
mustn't he have precoded?
mustn't we have precoded?
mustn't you have precoded?
mustn't they have precoded? 	mustn't I have been precoding?
mustn't you have been precoding?
mustn't he have been precoding?
mustn't we have been precoding?
mustn't you have been precoding?
mustn't they have been precoding?