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