must contaminate
Verbo regolare: contaminate - contaminated- contaminated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must contaminate
you must contaminate
he must contaminate
we must contaminate
you must contaminate
they must contaminate 	I must be contaminating
you must be contaminating
he must be contaminating
we must be contaminating
you must be contaminating
they must be contaminating	I must have contaminated
you must have contaminated
he must have contaminated
we must have contaminated
you must have contaminated
they must have contaminated	I must have been contaminating
you must have been contaminating
he must have been contaminating
we must have been contaminating
you must have been contaminating
they must have been contaminating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't contaminate
you mustn't contaminate
he mustn't contaminate
we mustn't contaminate
you mustn't contaminate
they mustn't contaminate 	I mustn't be contaminating
you mustn't be contaminating
he mustn't be contaminating
we mustn't be contaminating
you mustn't be contaminating
they mustn't be contaminating	I mustn't have contaminated
you mustn't have contaminated
he mustn't have contaminated
we mustn't have contaminated
you mustn't have contaminated
they mustn't have contaminated	I mustn't have been contaminating
you mustn't have been contaminating
he mustn't have been contaminating
we mustn't have been contaminating
you mustn't have been contaminating
they mustn't have been contaminating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I contaminate?
must you contaminate?
must he contaminate?
must we contaminate?
must you contaminate?
must they contaminate? 	must I be contaminating?
must you be contaminating?
must he be contaminating?
must we be contaminating?
must you be contaminating?
must they be contaminating? 	must I have contaminated?
must you have contaminated?
must he have contaminated?
must we have contaminated?
must you have contaminated?
must they have contaminated? 	must I have been contaminating?
must you have been contaminating?
must he have been contaminating?
must we have been contaminating?
must you have been contaminating?
must they have been contaminating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I contaminate?
mustn't you contaminate?
mustn't he contaminate?
mustn't we contaminate?
mustn't you contaminate?
mustn't they contaminate? 	mustn't I be contaminating?
mustn't you be contaminating?
mustn't he be contaminating?
mustn't we be contaminating?
mustn't you be contaminating?
mustn't they be contaminating? 	mustn't I have contaminated?
mustn't you have contaminated?
mustn't he have contaminated?
mustn't we have contaminated?
mustn't you have contaminated?
mustn't they have contaminated? 	mustn't I have been contaminating?
mustn't you have been contaminating?
mustn't he have been contaminating?
mustn't we have been contaminating?
mustn't you have been contaminating?
mustn't they have been contaminating?