I must pledge you must pledge he must pledge we must pledge you must pledge they must pledge
V-ing form
I must be pledging you must be pledging he must be pledging we must be pledging you must be pledging they must be pledging
Perfect
I must have pledged you must have pledged he must have pledged we must have pledged you must have pledged they must have pledged
V-ing perfect
I must have been pledging you must have been pledging he must have been pledging we must have been pledging you must have been pledging they must have been pledging
Negation
Simple form
I must not pledge you must not pledge he must not pledge we must not pledge you must not pledge they must not pledge
V-ing form
I must not be pledging you must not be pledging he must not be pledging we must not be pledging you must not be pledging they must not be pledging
Perfect
I must not have pledged you must not have pledged he must not have pledged we must not have pledged you must not have pledged they must not have pledged
V-ing perfect
I must not have been pledging you must not have been pledging he must not have been pledging we must not have been pledging you must not have been pledging they must not have been pledging
Interrogative form
Simple form
must I pledge? must you pledge? must he pledge? must we pledge? must you pledge? must they pledge?
V-ing form
must I be pledging? must you be pledging? must he be pledging? must we be pledging? must you be pledging? must they be pledging?
Perfect
must I have pledged? must you have pledged? must he have pledged? must we have pledged? must you have pledged? must they have pledged?
V-ing perfect
must I have been pledging? must you have been pledging? must he have been pledging? must we have been pledging? must you have been pledging? must they have been pledging?
Interro-negative form
Simple form
must I not pledge? must you not pledge? must he not pledge? must we not pledge? must you not pledge? must they not pledge?
V-ing form
must I not be pledging? must you not be pledging? must he not be pledging? must we not be pledging? must you not be pledging? must they not be pledging?
Perfect
must I not have pledged? must you not have pledged? must he not have pledged? must we not have pledged? must you not have pledged? must they not have pledged?
V-ing perfect
must I not have been pledging? must you not have been pledging? must he not have been pledging? must we not have been pledging? must you not have been pledging? must they not have been pledging?