must tranquillize
Verbo regular: tranquillize - tranquillized- tranquillized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tranquillize
you must tranquillize
he must tranquillize
we must tranquillize
you must tranquillize
they must tranquillize 	I must be tranquillizing
you must be tranquillizing
he must be tranquillizing
we must be tranquillizing
you must be tranquillizing
they must be tranquillizing	I must have tranquillized
you must have tranquillized
he must have tranquillized
we must have tranquillized
you must have tranquillized
they must have tranquillized	I must have been tranquillizing
you must have been tranquillizing
he must have been tranquillizing
we must have been tranquillizing
you must have been tranquillizing
they must have been tranquillizing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't tranquillize
you mustn't tranquillize
he mustn't tranquillize
we mustn't tranquillize
you mustn't tranquillize
they mustn't tranquillize 	I mustn't be tranquillizing
you mustn't be tranquillizing
he mustn't be tranquillizing
we mustn't be tranquillizing
you mustn't be tranquillizing
they mustn't be tranquillizing	I mustn't have tranquillized
you mustn't have tranquillized
he mustn't have tranquillized
we mustn't have tranquillized
you mustn't have tranquillized
they mustn't have tranquillized	I mustn't have been tranquillizing
you mustn't have been tranquillizing
he mustn't have been tranquillizing
we mustn't have been tranquillizing
you mustn't have been tranquillizing
they mustn't have been tranquillizing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tranquillize?
must you tranquillize?
must he tranquillize?
must we tranquillize?
must you tranquillize?
must they tranquillize? 	must I be tranquillizing?
must you be tranquillizing?
must he be tranquillizing?
must we be tranquillizing?
must you be tranquillizing?
must they be tranquillizing? 	must I have tranquillized?
must you have tranquillized?
must he have tranquillized?
must we have tranquillized?
must you have tranquillized?
must they have tranquillized? 	must I have been tranquillizing?
must you have been tranquillizing?
must he have been tranquillizing?
must we have been tranquillizing?
must you have been tranquillizing?
must they have been tranquillizing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I tranquillize?
mustn't you tranquillize?
mustn't he tranquillize?
mustn't we tranquillize?
mustn't you tranquillize?
mustn't they tranquillize? 	mustn't I be tranquillizing?
mustn't you be tranquillizing?
mustn't he be tranquillizing?
mustn't we be tranquillizing?
mustn't you be tranquillizing?
mustn't they be tranquillizing? 	mustn't I have tranquillized?
mustn't you have tranquillized?
mustn't he have tranquillized?
mustn't we have tranquillized?
mustn't you have tranquillized?
mustn't they have tranquillized? 	mustn't I have been tranquillizing?
mustn't you have been tranquillizing?
mustn't he have been tranquillizing?
mustn't we have been tranquillizing?
mustn't you have been tranquillizing?
mustn't they have been tranquillizing?