I must disbud you must disbud she must disbud we must disbud you must disbud they must disbud
V-ing form
I must be disbudding you must be disbudding she must be disbudding we must be disbudding you must be disbudding they must be disbudding
Perfect
I must have disbudded you must have disbudded she must have disbudded we must have disbudded you must have disbudded they must have disbudded
V-ing perfect
I must have been disbudding you must have been disbudding she must have been disbudding we must have been disbudding you must have been disbudding they must have been disbudding
Negation
Simple form
I must not disbud you must not disbud she must not disbud we must not disbud you must not disbud they must not disbud
V-ing form
I must not be disbudding you must not be disbudding she must not be disbudding we must not be disbudding you must not be disbudding they must not be disbudding
Perfect
I must not have disbudded you must not have disbudded she must not have disbudded we must not have disbudded you must not have disbudded they must not have disbudded
V-ing perfect
I must not have been disbudding you must not have been disbudding she must not have been disbudding we must not have been disbudding you must not have been disbudding they must not have been disbudding
Interrogative form
Simple form
must I disbud? must you disbud? must she disbud? must we disbud? must you disbud? must they disbud?
V-ing form
must I be disbudding? must you be disbudding? must she be disbudding? must we be disbudding? must you be disbudding? must they be disbudding?
Perfect
must I have disbudded? must you have disbudded? must she have disbudded? must we have disbudded? must you have disbudded? must they have disbudded?
V-ing perfect
must I have been disbudding? must you have been disbudding? must she have been disbudding? must we have been disbudding? must you have been disbudding? must they have been disbudding?
Interro-negative form
Simple form
must I not disbud? must you not disbud? must she not disbud? must we not disbud? must you not disbud? must they not disbud?
V-ing form
must I not be disbudding? must you not be disbudding? must she not be disbudding? must we not be disbudding? must you not be disbudding? must they not be disbudding?
Perfect
must I not have disbudded? must you not have disbudded? must she not have disbudded? must we not have disbudded? must you not have disbudded? must they not have disbudded?
V-ing perfect
must I not have been disbudding? must you not have been disbudding? must she not have been disbudding? must we not have been disbudding? must you not have been disbudding? must they not have been disbudding?