must precontract
Verbe régulier : precontract - precontracted- precontracted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must precontract
you must precontract
she must precontract
we must precontract
you must precontract
they must precontract 	I must be precontracting
you must be precontracting
she must be precontracting
we must be precontracting
you must be precontracting
they must be precontracting	I must have precontracted
you must have precontracted
she must have precontracted
we must have precontracted
you must have precontracted
they must have precontracted	I must have been precontracting
you must have been precontracting
she must have been precontracting
we must have been precontracting
you must have been precontracting
they must have been precontracting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not precontract
you must not precontract
she must not precontract
we must not precontract
you must not precontract
they must not precontract 	I must not be precontracting
you must not be precontracting
she must not be precontracting
we must not be precontracting
you must not be precontracting
they must not be precontracting	I must not have precontracted
you must not have precontracted
she must not have precontracted
we must not have precontracted
you must not have precontracted
they must not have precontracted	I must not have been precontracting
you must not have been precontracting
she must not have been precontracting
we must not have been precontracting
you must not have been precontracting
they must not have been precontracting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I precontract?
must you precontract?
must she precontract?
must we precontract?
must you precontract?
must they precontract? 	must I be precontracting?
must you be precontracting?
must she be precontracting?
must we be precontracting?
must you be precontracting?
must they be precontracting? 	must I have precontracted?
must you have precontracted?
must she have precontracted?
must we have precontracted?
must you have precontracted?
must they have precontracted? 	must I have been precontracting?
must you have been precontracting?
must she have been precontracting?
must we have been precontracting?
must you have been precontracting?
must they have been precontracting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not precontract?
must you not precontract?
must she not precontract?
must we not precontract?
must you not precontract?
must they not precontract? 	must I not be precontracting?
must you not be precontracting?
must she not be precontracting?
must we not be precontracting?
must you not be precontracting?
must they not be precontracting? 	must I not have precontracted?
must you not have precontracted?
must she not have precontracted?
must we not have precontracted?
must you not have precontracted?
must they not have precontracted? 	must I not have been precontracting?
must you not have been precontracting?
must she not have been precontracting?
must we not have been precontracting?
must you not have been precontracting?
must they not have been precontracting?