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 must not sophisticate you must not sophisticate he must not sophisticate we must not sophisticate you must not sophisticate they must not sophisticate
V-ing form
I must not be sophisticating you must not be sophisticating he must not be sophisticating we must not be sophisticating you must not be sophisticating they must not be sophisticating
Perfect
I must not have sophisticated you must not have sophisticated he must not have sophisticated we must not have sophisticated you must not have sophisticated they must not have sophisticated
V-ing perfect
I must not have been sophisticating you must not have been sophisticating he must not have been sophisticating we must not have been sophisticating you must not have been sophisticating they must not 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
must I not sophisticate? must you not sophisticate? must he not sophisticate? must we not sophisticate? must you not sophisticate? must they not sophisticate?
V-ing form
must I not be sophisticating? must you not be sophisticating? must he not be sophisticating? must we not be sophisticating? must you not be sophisticating? must they not be sophisticating?
Perfect
must I not have sophisticated? must you not have sophisticated? must he not have sophisticated? must we not have sophisticated? must you not have sophisticated? must they not have sophisticated?
V-ing perfect
must I not have been sophisticating? must you not have been sophisticating? must he not have been sophisticating? must we not have been sophisticating? must you not have been sophisticating? must they not have been sophisticating?