I must triffle you must triffle he must triffle we must triffle you must triffle they must triffle
Forme en V-ing
I must be triffling you must be triffling he must be triffling we must be triffling you must be triffling they must be triffling
Perfect
I must have triffled you must have triffled he must have triffled we must have triffled you must have triffled they must have triffled
Perfect en V-ing
I must have been triffling you must have been triffling he must have been triffling we must have been triffling you must have been triffling they must have been triffling
Négation
Forme simple
I must not triffle you must not triffle he must not triffle we must not triffle you must not triffle they must not triffle
Forme en V-ing
I must not be triffling you must not be triffling he must not be triffling we must not be triffling you must not be triffling they must not be triffling
Perfect
I must not have triffled you must not have triffled he must not have triffled we must not have triffled you must not have triffled they must not have triffled
Perfect en V-ing
I must not have been triffling you must not have been triffling he must not have been triffling we must not have been triffling you must not have been triffling they must not have been triffling
Forme interrogative
Forme simple
must I triffle? must you triffle? must he triffle? must we triffle? must you triffle? must they triffle?
Forme en V-ing
must I be triffling? must you be triffling? must he be triffling? must we be triffling? must you be triffling? must they be triffling?
Perfect
must I have triffled? must you have triffled? must he have triffled? must we have triffled? must you have triffled? must they have triffled?
Perfect en V-ing
must I have been triffling? must you have been triffling? must he have been triffling? must we have been triffling? must you have been triffling? must they have been triffling?
Forme interro-négative
Forme simple
must I not triffle? must you not triffle? must he not triffle? must we not triffle? must you not triffle? must they not triffle?
Forme en V-ing
must I not be triffling? must you not be triffling? must he not be triffling? must we not be triffling? must you not be triffling? must they not be triffling?
Perfect
must I not have triffled? must you not have triffled? must he not have triffled? must we not have triffled? must you not have triffled? must they not have triffled?
Perfect en V-ing
must I not have been triffling? must you not have been triffling? must he not have been triffling? must we not have been triffling? must you not have been triffling? must they not have been triffling?