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