I must decrepitate you must decrepitate he must decrepitate we must decrepitate you must decrepitate they must decrepitate
Forme en V-ing
I must be decrepitating you must be decrepitating he must be decrepitating we must be decrepitating you must be decrepitating they must be decrepitating
Perfect
I must have decrepitated you must have decrepitated he must have decrepitated we must have decrepitated you must have decrepitated they must have decrepitated
Perfect en V-ing
I must have been decrepitating you must have been decrepitating he must have been decrepitating we must have been decrepitating you must have been decrepitating they must have been decrepitating
Négation
Forme simple
I must not decrepitate you must not decrepitate he must not decrepitate we must not decrepitate you must not decrepitate they must not decrepitate
Forme en V-ing
I must not be decrepitating you must not be decrepitating he must not be decrepitating we must not be decrepitating you must not be decrepitating they must not be decrepitating
Perfect
I must not have decrepitated you must not have decrepitated he must not have decrepitated we must not have decrepitated you must not have decrepitated they must not have decrepitated
Perfect en V-ing
I must not have been decrepitating you must not have been decrepitating he must not have been decrepitating we must not have been decrepitating you must not have been decrepitating they must not have been decrepitating
Forme interrogative
Forme simple
must I decrepitate? must you decrepitate? must he decrepitate? must we decrepitate? must you decrepitate? must they decrepitate?
Forme en V-ing
must I be decrepitating? must you be decrepitating? must he be decrepitating? must we be decrepitating? must you be decrepitating? must they be decrepitating?
Perfect
must I have decrepitated? must you have decrepitated? must he have decrepitated? must we have decrepitated? must you have decrepitated? must they have decrepitated?
Perfect en V-ing
must I have been decrepitating? must you have been decrepitating? must he have been decrepitating? must we have been decrepitating? must you have been decrepitating? must they have been decrepitating?
Forme interro-négative
Forme simple
must I not decrepitate? must you not decrepitate? must he not decrepitate? must we not decrepitate? must you not decrepitate? must they not decrepitate?
Forme en V-ing
must I not be decrepitating? must you not be decrepitating? must he not be decrepitating? must we not be decrepitating? must you not be decrepitating? must they not be decrepitating?
Perfect
must I not have decrepitated? must you not have decrepitated? must he not have decrepitated? must we not have decrepitated? must you not have decrepitated? must they not have decrepitated?
Perfect en V-ing
must I not have been decrepitating? must you not have been decrepitating? must he not have been decrepitating? must we not have been decrepitating? must you not have been decrepitating? must they not have been decrepitating?