must plasticise
Verbo regular: plasticise - plasticised- plasticised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must plasticise
you must plasticise
he must plasticise
we must plasticise
you must plasticise
they must plasticise 	I must be plasticising
you must be plasticising
he must be plasticising
we must be plasticising
you must be plasticising
they must be plasticising	I must have plasticised
you must have plasticised
he must have plasticised
we must have plasticised
you must have plasticised
they must have plasticised	I must have been plasticising
you must have been plasticising
he must have been plasticising
we must have been plasticising
you must have been plasticising
they must have been plasticising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not plasticise
you must not plasticise
he must not plasticise
we must not plasticise
you must not plasticise
they must not plasticise 	I must not be plasticising
you must not be plasticising
he must not be plasticising
we must not be plasticising
you must not be plasticising
they must not be plasticising	I must not have plasticised
you must not have plasticised
he must not have plasticised
we must not have plasticised
you must not have plasticised
they must not have plasticised	I must not have been plasticising
you must not have been plasticising
he must not have been plasticising
we must not have been plasticising
you must not have been plasticising
they must not have been plasticising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I plasticise?
must you plasticise?
must he plasticise?
must we plasticise?
must you plasticise?
must they plasticise? 	must I be plasticising?
must you be plasticising?
must he be plasticising?
must we be plasticising?
must you be plasticising?
must they be plasticising? 	must I have plasticised?
must you have plasticised?
must he have plasticised?
must we have plasticised?
must you have plasticised?
must they have plasticised? 	must I have been plasticising?
must you have been plasticising?
must he have been plasticising?
must we have been plasticising?
must you have been plasticising?
must they have been plasticising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not plasticise?
must you not plasticise?
must he not plasticise?
must we not plasticise?
must you not plasticise?
must they not plasticise? 	must I not be plasticising?
must you not be plasticising?
must he not be plasticising?
must we not be plasticising?
must you not be plasticising?
must they not be plasticising? 	must I not have plasticised?
must you not have plasticised?
must he not have plasticised?
must we not have plasticised?
must you not have plasticised?
must they not have plasticised? 	must I not have been plasticising?
must you not have been plasticising?
must he not have been plasticising?
must we not have been plasticising?
must you not have been plasticising?
must they not have been plasticising?