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