I must invalidate you must invalidate he must invalidate we must invalidate you must invalidate they must invalidate
Forme en V-ing
I must be invalidating you must be invalidating he must be invalidating we must be invalidating you must be invalidating they must be invalidating
Perfect
I must have invalidated you must have invalidated he must have invalidated we must have invalidated you must have invalidated they must have invalidated
Perfect en V-ing
I must have been invalidating you must have been invalidating he must have been invalidating we must have been invalidating you must have been invalidating they must have been invalidating
Négation
Forme simple
I mustn't invalidate you mustn't invalidate he mustn't invalidate we mustn't invalidate you mustn't invalidate they mustn't invalidate
Forme en V-ing
I mustn't be invalidating you mustn't be invalidating he mustn't be invalidating we mustn't be invalidating you mustn't be invalidating they mustn't be invalidating
Perfect
I mustn't have invalidated you mustn't have invalidated he mustn't have invalidated we mustn't have invalidated you mustn't have invalidated they mustn't have invalidated
Perfect en V-ing
I mustn't have been invalidating you mustn't have been invalidating he mustn't have been invalidating we mustn't have been invalidating you mustn't have been invalidating they mustn't have been invalidating
Forme interrogative
Forme simple
must I invalidate? must you invalidate? must he invalidate? must we invalidate? must you invalidate? must they invalidate?
Forme en V-ing
must I be invalidating? must you be invalidating? must he be invalidating? must we be invalidating? must you be invalidating? must they be invalidating?
Perfect
must I have invalidated? must you have invalidated? must he have invalidated? must we have invalidated? must you have invalidated? must they have invalidated?
Perfect en V-ing
must I have been invalidating? must you have been invalidating? must he have been invalidating? must we have been invalidating? must you have been invalidating? must they have been invalidating?
Forme interro-négative
Forme simple
mustn't I invalidate? mustn't you invalidate? mustn't he invalidate? mustn't we invalidate? mustn't you invalidate? mustn't they invalidate?
Forme en V-ing
mustn't I be invalidating? mustn't you be invalidating? mustn't he be invalidating? mustn't we be invalidating? mustn't you be invalidating? mustn't they be invalidating?
Perfect
mustn't I have invalidated? mustn't you have invalidated? mustn't he have invalidated? mustn't we have invalidated? mustn't you have invalidated? mustn't they have invalidated?
Perfect en V-ing
mustn't I have been invalidating? mustn't you have been invalidating? mustn't he have been invalidating? mustn't we have been invalidating? mustn't you have been invalidating? mustn't they have been invalidating?