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