I must summarise you must summarise he must summarise we must summarise you must summarise they must summarise
V-ing form
I must be summarising you must be summarising he must be summarising we must be summarising you must be summarising they must be summarising
Perfect
I must have summarised you must have summarised he must have summarised we must have summarised you must have summarised they must have summarised
V-ing perfect
I must have been summarising you must have been summarising he must have been summarising we must have been summarising you must have been summarising they must have been summarising
Negation
Simple form
I must not summarise you must not summarise he must not summarise we must not summarise you must not summarise they must not summarise
V-ing form
I must not be summarising you must not be summarising he must not be summarising we must not be summarising you must not be summarising they must not be summarising
Perfect
I must not have summarised you must not have summarised he must not have summarised we must not have summarised you must not have summarised they must not have summarised
V-ing perfect
I must not have been summarising you must not have been summarising he must not have been summarising we must not have been summarising you must not have been summarising they must not have been summarising
Interrogative form
Simple form
must I summarise? must you summarise? must he summarise? must we summarise? must you summarise? must they summarise?
V-ing form
must I be summarising? must you be summarising? must he be summarising? must we be summarising? must you be summarising? must they be summarising?
Perfect
must I have summarised? must you have summarised? must he have summarised? must we have summarised? must you have summarised? must they have summarised?
V-ing perfect
must I have been summarising? must you have been summarising? must he have been summarising? must we have been summarising? must you have been summarising? must they have been summarising?
Interro-negative form
Simple form
must I not summarise? must you not summarise? must he not summarise? must we not summarise? must you not summarise? must they not summarise?
V-ing form
must I not be summarising? must you not be summarising? must he not be summarising? must we not be summarising? must you not be summarising? must they not be summarising?
Perfect
must I not have summarised? must you not have summarised? must he not have summarised? must we not have summarised? must you not have summarised? must they not have summarised?
V-ing perfect
must I not have been summarising? must you not have been summarising? must he not have been summarising? must we not have been summarising? must you not have been summarising? must they not have been summarising?