I must whistle you must whistle he must whistle we must whistle you must whistle they must whistle
Forme en V-ing
I must be whistling you must be whistling he must be whistling we must be whistling you must be whistling they must be whistling
Perfect
I must have whistled you must have whistled he must have whistled we must have whistled you must have whistled they must have whistled
Perfect en V-ing
I must have been whistling you must have been whistling he must have been whistling we must have been whistling you must have been whistling they must have been whistling
Négation
Forme simple
I must not whistle you must not whistle he must not whistle we must not whistle you must not whistle they must not whistle
Forme en V-ing
I must not be whistling you must not be whistling he must not be whistling we must not be whistling you must not be whistling they must not be whistling
Perfect
I must not have whistled you must not have whistled he must not have whistled we must not have whistled you must not have whistled they must not have whistled
Perfect en V-ing
I must not have been whistling you must not have been whistling he must not have been whistling we must not have been whistling you must not have been whistling they must not have been whistling
Forme interrogative
Forme simple
must I whistle? must you whistle? must he whistle? must we whistle? must you whistle? must they whistle?
Forme en V-ing
must I be whistling? must you be whistling? must he be whistling? must we be whistling? must you be whistling? must they be whistling?
Perfect
must I have whistled? must you have whistled? must he have whistled? must we have whistled? must you have whistled? must they have whistled?
Perfect en V-ing
must I have been whistling? must you have been whistling? must he have been whistling? must we have been whistling? must you have been whistling? must they have been whistling?
Forme interro-négative
Forme simple
must I not whistle? must you not whistle? must he not whistle? must we not whistle? must you not whistle? must they not whistle?
Forme en V-ing
must I not be whistling? must you not be whistling? must he not be whistling? must we not be whistling? must you not be whistling? must they not be whistling?
Perfect
must I not have whistled? must you not have whistled? must he not have whistled? must we not have whistled? must you not have whistled? must they not have whistled?
Perfect en V-ing
must I not have been whistling? must you not have been whistling? must he not have been whistling? must we not have been whistling? must you not have been whistling? must they not have been whistling?