must obturate
Verbe régulier : obturate - obturated- obturated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must obturate
you must obturate
she must obturate
we must obturate
you must obturate
they must obturate 	I must be obturating
you must be obturating
she must be obturating
we must be obturating
you must be obturating
they must be obturating	I must have obturated
you must have obturated
she must have obturated
we must have obturated
you must have obturated
they must have obturated	I must have been obturating
you must have been obturating
she must have been obturating
we must have been obturating
you must have been obturating
they must have been obturating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not obturate
you must not obturate
she must not obturate
we must not obturate
you must not obturate
they must not obturate 	I must not be obturating
you must not be obturating
she must not be obturating
we must not be obturating
you must not be obturating
they must not be obturating	I must not have obturated
you must not have obturated
she must not have obturated
we must not have obturated
you must not have obturated
they must not have obturated	I must not have been obturating
you must not have been obturating
she must not have been obturating
we must not have been obturating
you must not have been obturating
they must not have been obturating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I obturate?
must you obturate?
must she obturate?
must we obturate?
must you obturate?
must they obturate? 	must I be obturating?
must you be obturating?
must she be obturating?
must we be obturating?
must you be obturating?
must they be obturating? 	must I have obturated?
must you have obturated?
must she have obturated?
must we have obturated?
must you have obturated?
must they have obturated? 	must I have been obturating?
must you have been obturating?
must she have been obturating?
must we have been obturating?
must you have been obturating?
must they have been obturating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not obturate?
must you not obturate?
must she not obturate?
must we not obturate?
must you not obturate?
must they not obturate? 	must I not be obturating?
must you not be obturating?
must she not be obturating?
must we not be obturating?
must you not be obturating?
must they not be obturating? 	must I not have obturated?
must you not have obturated?
must she not have obturated?
must we not have obturated?
must you not have obturated?
must they not have obturated? 	must I not have been obturating?
must you not have been obturating?
must she not have been obturating?
must we not have been obturating?
must you not have been obturating?
must they not have been obturating?