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