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 must not obfuscate you must not obfuscate he must not obfuscate we must not obfuscate you must not obfuscate they must not obfuscate
V-ing form
I must not be obfuscating you must not be obfuscating he must not be obfuscating we must not be obfuscating you must not be obfuscating they must not be obfuscating
Perfect
I must not have obfuscated you must not have obfuscated he must not have obfuscated we must not have obfuscated you must not have obfuscated they must not have obfuscated
V-ing perfect
I must not have been obfuscating you must not have been obfuscating he must not have been obfuscating we must not have been obfuscating you must not have been obfuscating they must not 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
must I not obfuscate? must you not obfuscate? must he not obfuscate? must we not obfuscate? must you not obfuscate? must they not obfuscate?
V-ing form
must I not be obfuscating? must you not be obfuscating? must he not be obfuscating? must we not be obfuscating? must you not be obfuscating? must they not be obfuscating?
Perfect
must I not have obfuscated? must you not have obfuscated? must he not have obfuscated? must we not have obfuscated? must you not have obfuscated? must they not have obfuscated?
V-ing perfect
must I not have been obfuscating? must you not have been obfuscating? must he not have been obfuscating? must we not have been obfuscating? must you not have been obfuscating? must they not have been obfuscating?