I must ligature you must ligature she must ligature we must ligature you must ligature they must ligature
V-ing form
I must be ligaturing you must be ligaturing she must be ligaturing we must be ligaturing you must be ligaturing they must be ligaturing
Perfect
I must have ligatured you must have ligatured she must have ligatured we must have ligatured you must have ligatured they must have ligatured
V-ing perfect
I must have been ligaturing you must have been ligaturing she must have been ligaturing we must have been ligaturing you must have been ligaturing they must have been ligaturing
Negation
Simple form
I must not ligature you must not ligature she must not ligature we must not ligature you must not ligature they must not ligature
V-ing form
I must not be ligaturing you must not be ligaturing she must not be ligaturing we must not be ligaturing you must not be ligaturing they must not be ligaturing
Perfect
I must not have ligatured you must not have ligatured she must not have ligatured we must not have ligatured you must not have ligatured they must not have ligatured
V-ing perfect
I must not have been ligaturing you must not have been ligaturing she must not have been ligaturing we must not have been ligaturing you must not have been ligaturing they must not have been ligaturing
Interrogative form
Simple form
must I ligature? must you ligature? must she ligature? must we ligature? must you ligature? must they ligature?
V-ing form
must I be ligaturing? must you be ligaturing? must she be ligaturing? must we be ligaturing? must you be ligaturing? must they be ligaturing?
Perfect
must I have ligatured? must you have ligatured? must she have ligatured? must we have ligatured? must you have ligatured? must they have ligatured?
V-ing perfect
must I have been ligaturing? must you have been ligaturing? must she have been ligaturing? must we have been ligaturing? must you have been ligaturing? must they have been ligaturing?
Interro-negative form
Simple form
must I not ligature? must you not ligature? must she not ligature? must we not ligature? must you not ligature? must they not ligature?
V-ing form
must I not be ligaturing? must you not be ligaturing? must she not be ligaturing? must we not be ligaturing? must you not be ligaturing? must they not be ligaturing?
Perfect
must I not have ligatured? must you not have ligatured? must she not have ligatured? must we not have ligatured? must you not have ligatured? must they not have ligatured?
V-ing perfect
must I not have been ligaturing? must you not have been ligaturing? must she not have been ligaturing? must we not have been ligaturing? must you not have been ligaturing? must they not have been ligaturing?