must polymerise
Regular verb: polymerise - polymerised- polymerised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must polymerise
you must polymerise
she must polymerise
we must polymerise
you must polymerise
they must polymerise 	I must be polymerising
you must be polymerising
she must be polymerising
we must be polymerising
you must be polymerising
they must be polymerising	I must have polymerised
you must have polymerised
she must have polymerised
we must have polymerised
you must have polymerised
they must have polymerised	I must have been polymerising
you must have been polymerising
she must have been polymerising
we must have been polymerising
you must have been polymerising
they must have been polymerising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't polymerise
you mustn't polymerise
she mustn't polymerise
we mustn't polymerise
you mustn't polymerise
they mustn't polymerise 	I mustn't be polymerising
you mustn't be polymerising
she mustn't be polymerising
we mustn't be polymerising
you mustn't be polymerising
they mustn't be polymerising	I mustn't have polymerised
you mustn't have polymerised
she mustn't have polymerised
we mustn't have polymerised
you mustn't have polymerised
they mustn't have polymerised	I mustn't have been polymerising
you mustn't have been polymerising
she mustn't have been polymerising
we mustn't have been polymerising
you mustn't have been polymerising
they mustn't have been polymerising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I polymerise?
must you polymerise?
must she polymerise?
must we polymerise?
must you polymerise?
must they polymerise? 	must I be polymerising?
must you be polymerising?
must she be polymerising?
must we be polymerising?
must you be polymerising?
must they be polymerising? 	must I have polymerised?
must you have polymerised?
must she have polymerised?
must we have polymerised?
must you have polymerised?
must they have polymerised? 	must I have been polymerising?
must you have been polymerising?
must she have been polymerising?
must we have been polymerising?
must you have been polymerising?
must they have been polymerising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I polymerise?
mustn't you polymerise?
mustn't she polymerise?
mustn't we polymerise?
mustn't you polymerise?
mustn't they polymerise? 	mustn't I be polymerising?
mustn't you be polymerising?
mustn't she be polymerising?
mustn't we be polymerising?
mustn't you be polymerising?
mustn't they be polymerising? 	mustn't I have polymerised?
mustn't you have polymerised?
mustn't she have polymerised?
mustn't we have polymerised?
mustn't you have polymerised?
mustn't they have polymerised? 	mustn't I have been polymerising?
mustn't you have been polymerising?
mustn't she have been polymerising?
mustn't we have been polymerising?
mustn't you have been polymerising?
mustn't they have been polymerising?