must probe
Verbe régulier : probe - probed- probed
Traduction française : enquêter sur - enquêter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must probe
you must probe
she must probe
we must probe
you must probe
they must probe 	I must be probing
you must be probing
she must be probing
we must be probing
you must be probing
they must be probing	I must have probed
you must have probed
she must have probed
we must have probed
you must have probed
they must have probed	I must have been probing
you must have been probing
she must have been probing
we must have been probing
you must have been probing
they must have been probing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not probe
you must not probe
she must not probe
we must not probe
you must not probe
they must not probe 	I must not be probing
you must not be probing
she must not be probing
we must not be probing
you must not be probing
they must not be probing	I must not have probed
you must not have probed
she must not have probed
we must not have probed
you must not have probed
they must not have probed	I must not have been probing
you must not have been probing
she must not have been probing
we must not have been probing
you must not have been probing
they must not have been probing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I probe?
must you probe?
must she probe?
must we probe?
must you probe?
must they probe? 	must I be probing?
must you be probing?
must she be probing?
must we be probing?
must you be probing?
must they be probing? 	must I have probed?
must you have probed?
must she have probed?
must we have probed?
must you have probed?
must they have probed? 	must I have been probing?
must you have been probing?
must she have been probing?
must we have been probing?
must you have been probing?
must they have been probing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not probe?
must you not probe?
must she not probe?
must we not probe?
must you not probe?
must they not probe? 	must I not be probing?
must you not be probing?
must she not be probing?
must we not be probing?
must you not be probing?
must they not be probing? 	must I not have probed?
must you not have probed?
must she not have probed?
must we not have probed?
must you not have probed?
must they not have probed? 	must I not have been probing?
must you not have been probing?
must she not have been probing?
must we not have been probing?
must you not have been probing?
must they not have been probing?