I must declassify you must declassify he must declassify we must declassify you must declassify they must declassify
V-ing form
I must be declassifying you must be declassifying he must be declassifying we must be declassifying you must be declassifying they must be declassifying
Perfect
I must have declassified you must have declassified he must have declassified we must have declassified you must have declassified they must have declassified
V-ing perfect
I must have been declassifying you must have been declassifying he must have been declassifying we must have been declassifying you must have been declassifying they must have been declassifying
Negation
Simple form
I mustn't declassify you mustn't declassify he mustn't declassify we mustn't declassify you mustn't declassify they mustn't declassify
V-ing form
I mustn't be declassifying you mustn't be declassifying he mustn't be declassifying we mustn't be declassifying you mustn't be declassifying they mustn't be declassifying
Perfect
I mustn't have declassified you mustn't have declassified he mustn't have declassified we mustn't have declassified you mustn't have declassified they mustn't have declassified
V-ing perfect
I mustn't have been declassifying you mustn't have been declassifying he mustn't have been declassifying we mustn't have been declassifying you mustn't have been declassifying they mustn't have been declassifying
Interrogative form
Simple form
must I declassify? must you declassify? must he declassify? must we declassify? must you declassify? must they declassify?
V-ing form
must I be declassifying? must you be declassifying? must he be declassifying? must we be declassifying? must you be declassifying? must they be declassifying?
Perfect
must I have declassified? must you have declassified? must he have declassified? must we have declassified? must you have declassified? must they have declassified?
V-ing perfect
must I have been declassifying? must you have been declassifying? must he have been declassifying? must we have been declassifying? must you have been declassifying? must they have been declassifying?
Interro-negative form
Simple form
mustn't I declassify? mustn't you declassify? mustn't he declassify? mustn't we declassify? mustn't you declassify? mustn't they declassify?
V-ing form
mustn't I be declassifying? mustn't you be declassifying? mustn't he be declassifying? mustn't we be declassifying? mustn't you be declassifying? mustn't they be declassifying?
Perfect
mustn't I have declassified? mustn't you have declassified? mustn't he have declassified? mustn't we have declassified? mustn't you have declassified? mustn't they have declassified?
V-ing perfect
mustn't I have been declassifying? mustn't you have been declassifying? mustn't he have been declassifying? mustn't we have been declassifying? mustn't you have been declassifying? mustn't they have been declassifying?