must ionise
Verbo regular: ionise - ionised- ionised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must ionise
you must ionise
he must ionise
we must ionise
you must ionise
they must ionise 	I must be ionising
you must be ionising
he must be ionising
we must be ionising
you must be ionising
they must be ionising	I must have ionised
you must have ionised
he must have ionised
we must have ionised
you must have ionised
they must have ionised	I must have been ionising
you must have been ionising
he must have been ionising
we must have been ionising
you must have been ionising
they must have been ionising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't ionise
you mustn't ionise
he mustn't ionise
we mustn't ionise
you mustn't ionise
they mustn't ionise 	I mustn't be ionising
you mustn't be ionising
he mustn't be ionising
we mustn't be ionising
you mustn't be ionising
they mustn't be ionising	I mustn't have ionised
you mustn't have ionised
he mustn't have ionised
we mustn't have ionised
you mustn't have ionised
they mustn't have ionised	I mustn't have been ionising
you mustn't have been ionising
he mustn't have been ionising
we mustn't have been ionising
you mustn't have been ionising
they mustn't have been ionising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I ionise?
must you ionise?
must he ionise?
must we ionise?
must you ionise?
must they ionise? 	must I be ionising?
must you be ionising?
must he be ionising?
must we be ionising?
must you be ionising?
must they be ionising? 	must I have ionised?
must you have ionised?
must he have ionised?
must we have ionised?
must you have ionised?
must they have ionised? 	must I have been ionising?
must you have been ionising?
must he have been ionising?
must we have been ionising?
must you have been ionising?
must they have been ionising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I ionise?
mustn't you ionise?
mustn't he ionise?
mustn't we ionise?
mustn't you ionise?
mustn't they ionise? 	mustn't I be ionising?
mustn't you be ionising?
mustn't he be ionising?
mustn't we be ionising?
mustn't you be ionising?
mustn't they be ionising? 	mustn't I have ionised?
mustn't you have ionised?
mustn't he have ionised?
mustn't we have ionised?
mustn't you have ionised?
mustn't they have ionised? 	mustn't I have been ionising?
mustn't you have been ionising?
mustn't he have been ionising?
mustn't we have been ionising?
mustn't you have been ionising?
mustn't they have been ionising?