I must flash you must flash he must flash we must flash you must flash they must flash
Forme en V-ing
I must be flashing you must be flashing he must be flashing we must be flashing you must be flashing they must be flashing
Perfect
I must have flashed you must have flashed he must have flashed we must have flashed you must have flashed they must have flashed
Perfect en V-ing
I must have been flashing you must have been flashing he must have been flashing we must have been flashing you must have been flashing they must have been flashing
Négation
Forme simple
I must not flash you must not flash he must not flash we must not flash you must not flash they must not flash
Forme en V-ing
I must not be flashing you must not be flashing he must not be flashing we must not be flashing you must not be flashing they must not be flashing
Perfect
I must not have flashed you must not have flashed he must not have flashed we must not have flashed you must not have flashed they must not have flashed
Perfect en V-ing
I must not have been flashing you must not have been flashing he must not have been flashing we must not have been flashing you must not have been flashing they must not have been flashing
Forme interrogative
Forme simple
must I flash? must you flash? must he flash? must we flash? must you flash? must they flash?
Forme en V-ing
must I be flashing? must you be flashing? must he be flashing? must we be flashing? must you be flashing? must they be flashing?
Perfect
must I have flashed? must you have flashed? must he have flashed? must we have flashed? must you have flashed? must they have flashed?
Perfect en V-ing
must I have been flashing? must you have been flashing? must he have been flashing? must we have been flashing? must you have been flashing? must they have been flashing?
Forme interro-négative
Forme simple
must I not flash? must you not flash? must he not flash? must we not flash? must you not flash? must they not flash?
Forme en V-ing
must I not be flashing? must you not be flashing? must he not be flashing? must we not be flashing? must you not be flashing? must they not be flashing?
Perfect
must I not have flashed? must you not have flashed? must he not have flashed? must we not have flashed? must you not have flashed? must they not have flashed?
Perfect en V-ing
must I not have been flashing? must you not have been flashing? must he not have been flashing? must we not have been flashing? must you not have been flashing? must they not have been flashing?