I must copolymerise you must copolymerise she must copolymerise we must copolymerise you must copolymerise they must copolymerise
V-ing form
I must be copolymerising you must be copolymerising she must be copolymerising we must be copolymerising you must be copolymerising they must be copolymerising
Perfect
I must have copolymerised you must have copolymerised she 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 she 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 she 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 she 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 she 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 she 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 she copolymerise? must we copolymerise? must you copolymerise? must they copolymerise?
V-ing form
must I be copolymerising? must you be copolymerising? must she be copolymerising? must we be copolymerising? must you be copolymerising? must they be copolymerising?
Perfect
must I have copolymerised? must you have copolymerised? must she 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 she 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 she 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 she 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 she 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 she have been copolymerising? mustn't we have been copolymerising? mustn't you have been copolymerising? mustn't they have been copolymerising?