I must shell you must shell he must shell we must shell you must shell they must shell
Forme en V-ing
I must be shelling you must be shelling he must be shelling we must be shelling you must be shelling they must be shelling
Perfect
I must have shelled you must have shelled he must have shelled we must have shelled you must have shelled they must have shelled
Perfect en V-ing
I must have been shelling you must have been shelling he must have been shelling we must have been shelling you must have been shelling they must have been shelling
Négation
Forme simple
I must not shell you must not shell he must not shell we must not shell you must not shell they must not shell
Forme en V-ing
I must not be shelling you must not be shelling he must not be shelling we must not be shelling you must not be shelling they must not be shelling
Perfect
I must not have shelled you must not have shelled he must not have shelled we must not have shelled you must not have shelled they must not have shelled
Perfect en V-ing
I must not have been shelling you must not have been shelling he must not have been shelling we must not have been shelling you must not have been shelling they must not have been shelling
Forme interrogative
Forme simple
must I shell? must you shell? must he shell? must we shell? must you shell? must they shell?
Forme en V-ing
must I be shelling? must you be shelling? must he be shelling? must we be shelling? must you be shelling? must they be shelling?
Perfect
must I have shelled? must you have shelled? must he have shelled? must we have shelled? must you have shelled? must they have shelled?
Perfect en V-ing
must I have been shelling? must you have been shelling? must he have been shelling? must we have been shelling? must you have been shelling? must they have been shelling?
Forme interro-négative
Forme simple
must I not shell? must you not shell? must he not shell? must we not shell? must you not shell? must they not shell?
Forme en V-ing
must I not be shelling? must you not be shelling? must he not be shelling? must we not be shelling? must you not be shelling? must they not be shelling?
Perfect
must I not have shelled? must you not have shelled? must he not have shelled? must we not have shelled? must you not have shelled? must they not have shelled?
Perfect en V-ing
must I not have been shelling? must you not have been shelling? must he not have been shelling? must we not have been shelling? must you not have been shelling? must they not have been shelling?