must preinsert
Verbe régulier : preinsert - preinserted- preinserted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must preinsert
you must preinsert
he must preinsert
we must preinsert
you must preinsert
they must preinsert 	I must be preinserting
you must be preinserting
he must be preinserting
we must be preinserting
you must be preinserting
they must be preinserting	I must have preinserted
you must have preinserted
he must have preinserted
we must have preinserted
you must have preinserted
they must have preinserted	I must have been preinserting
you must have been preinserting
he must have been preinserting
we must have been preinserting
you must have been preinserting
they must have been preinserting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not preinsert
you must not preinsert
he must not preinsert
we must not preinsert
you must not preinsert
they must not preinsert 	I must not be preinserting
you must not be preinserting
he must not be preinserting
we must not be preinserting
you must not be preinserting
they must not be preinserting	I must not have preinserted
you must not have preinserted
he must not have preinserted
we must not have preinserted
you must not have preinserted
they must not have preinserted	I must not have been preinserting
you must not have been preinserting
he must not have been preinserting
we must not have been preinserting
you must not have been preinserting
they must not have been preinserting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I preinsert?
must you preinsert?
must he preinsert?
must we preinsert?
must you preinsert?
must they preinsert? 	must I be preinserting?
must you be preinserting?
must he be preinserting?
must we be preinserting?
must you be preinserting?
must they be preinserting? 	must I have preinserted?
must you have preinserted?
must he have preinserted?
must we have preinserted?
must you have preinserted?
must they have preinserted? 	must I have been preinserting?
must you have been preinserting?
must he have been preinserting?
must we have been preinserting?
must you have been preinserting?
must they have been preinserting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not preinsert?
must you not preinsert?
must he not preinsert?
must we not preinsert?
must you not preinsert?
must they not preinsert? 	must I not be preinserting?
must you not be preinserting?
must he not be preinserting?
must we not be preinserting?
must you not be preinserting?
must they not be preinserting? 	must I not have preinserted?
must you not have preinserted?
must he not have preinserted?
must we not have preinserted?
must you not have preinserted?
must they not have preinserted? 	must I not have been preinserting?
must you not have been preinserting?
must he not have been preinserting?
must we not have been preinserting?
must you not have been preinserting?
must they not have been preinserting?