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