I must drill you must drill he must drill we must drill you must drill they must drill
Forme en V-ing
I must be drilling you must be drilling he must be drilling we must be drilling you must be drilling they must be drilling
Perfect
I must have drilled you must have drilled he must have drilled we must have drilled you must have drilled they must have drilled
Perfect en V-ing
I must have been drilling you must have been drilling he must have been drilling we must have been drilling you must have been drilling they must have been drilling
Négation
Forme simple
I must not drill you must not drill he must not drill we must not drill you must not drill they must not drill
Forme en V-ing
I must not be drilling you must not be drilling he must not be drilling we must not be drilling you must not be drilling they must not be drilling
Perfect
I must not have drilled you must not have drilled he must not have drilled we must not have drilled you must not have drilled they must not have drilled
Perfect en V-ing
I must not have been drilling you must not have been drilling he must not have been drilling we must not have been drilling you must not have been drilling they must not have been drilling
Forme interrogative
Forme simple
must I drill? must you drill? must he drill? must we drill? must you drill? must they drill?
Forme en V-ing
must I be drilling? must you be drilling? must he be drilling? must we be drilling? must you be drilling? must they be drilling?
Perfect
must I have drilled? must you have drilled? must he have drilled? must we have drilled? must you have drilled? must they have drilled?
Perfect en V-ing
must I have been drilling? must you have been drilling? must he have been drilling? must we have been drilling? must you have been drilling? must they have been drilling?
Forme interro-négative
Forme simple
must I not drill? must you not drill? must he not drill? must we not drill? must you not drill? must they not drill?
Forme en V-ing
must I not be drilling? must you not be drilling? must he not be drilling? must we not be drilling? must you not be drilling? must they not be drilling?
Perfect
must I not have drilled? must you not have drilled? must he not have drilled? must we not have drilled? must you not have drilled? must they not have drilled?
Perfect en V-ing
must I not have been drilling? must you not have been drilling? must he not have been drilling? must we not have been drilling? must you not have been drilling? must they not have been drilling?