I must rationalise you must rationalise he must rationalise we must rationalise you must rationalise they must rationalise
V-ing form
I must be rationalising you must be rationalising he must be rationalising we must be rationalising you must be rationalising they must be rationalising
Perfect
I must have rationalised you must have rationalised he must have rationalised we must have rationalised you must have rationalised they must have rationalised
V-ing perfect
I must have been rationalising you must have been rationalising he must have been rationalising we must have been rationalising you must have been rationalising they must have been rationalising
Negation
Simple form
I must not rationalise you must not rationalise he must not rationalise we must not rationalise you must not rationalise they must not rationalise
V-ing form
I must not be rationalising you must not be rationalising he must not be rationalising we must not be rationalising you must not be rationalising they must not be rationalising
Perfect
I must not have rationalised you must not have rationalised he must not have rationalised we must not have rationalised you must not have rationalised they must not have rationalised
V-ing perfect
I must not have been rationalising you must not have been rationalising he must not have been rationalising we must not have been rationalising you must not have been rationalising they must not have been rationalising
Interrogative form
Simple form
must I rationalise? must you rationalise? must he rationalise? must we rationalise? must you rationalise? must they rationalise?
V-ing form
must I be rationalising? must you be rationalising? must he be rationalising? must we be rationalising? must you be rationalising? must they be rationalising?
Perfect
must I have rationalised? must you have rationalised? must he have rationalised? must we have rationalised? must you have rationalised? must they have rationalised?
V-ing perfect
must I have been rationalising? must you have been rationalising? must he have been rationalising? must we have been rationalising? must you have been rationalising? must they have been rationalising?
Interro-negative form
Simple form
must I not rationalise? must you not rationalise? must he not rationalise? must we not rationalise? must you not rationalise? must they not rationalise?
V-ing form
must I not be rationalising? must you not be rationalising? must he not be rationalising? must we not be rationalising? must you not be rationalising? must they not be rationalising?
Perfect
must I not have rationalised? must you not have rationalised? must he not have rationalised? must we not have rationalised? must you not have rationalised? must they not have rationalised?
V-ing perfect
must I not have been rationalising? must you not have been rationalising? must he not have been rationalising? must we not have been rationalising? must you not have been rationalising? must they not have been rationalising?