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