must pollute
Regular verb: pollute - polluted- polluted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pollute
you must pollute
she must pollute
we must pollute
you must pollute
they must pollute 	I must be polluting
you must be polluting
she must be polluting
we must be polluting
you must be polluting
they must be polluting	I must have polluted
you must have polluted
she must have polluted
we must have polluted
you must have polluted
they must have polluted	I must have been polluting
you must have been polluting
she must have been polluting
we must have been polluting
you must have been polluting
they must have been polluting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't pollute
you mustn't pollute
she mustn't pollute
we mustn't pollute
you mustn't pollute
they mustn't pollute 	I mustn't be polluting
you mustn't be polluting
she mustn't be polluting
we mustn't be polluting
you mustn't be polluting
they mustn't be polluting	I mustn't have polluted
you mustn't have polluted
she mustn't have polluted
we mustn't have polluted
you mustn't have polluted
they mustn't have polluted	I mustn't have been polluting
you mustn't have been polluting
she mustn't have been polluting
we mustn't have been polluting
you mustn't have been polluting
they mustn't have been polluting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pollute?
must you pollute?
must she pollute?
must we pollute?
must you pollute?
must they pollute? 	must I be polluting?
must you be polluting?
must she be polluting?
must we be polluting?
must you be polluting?
must they be polluting? 	must I have polluted?
must you have polluted?
must she have polluted?
must we have polluted?
must you have polluted?
must they have polluted? 	must I have been polluting?
must you have been polluting?
must she have been polluting?
must we have been polluting?
must you have been polluting?
must they have been polluting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I pollute?
mustn't you pollute?
mustn't she pollute?
mustn't we pollute?
mustn't you pollute?
mustn't they pollute? 	mustn't I be polluting?
mustn't you be polluting?
mustn't she be polluting?
mustn't we be polluting?
mustn't you be polluting?
mustn't they be polluting? 	mustn't I have polluted?
mustn't you have polluted?
mustn't she have polluted?
mustn't we have polluted?
mustn't you have polluted?
mustn't they have polluted? 	mustn't I have been polluting?
mustn't you have been polluting?
mustn't she have been polluting?
mustn't we have been polluting?
mustn't you have been polluting?
mustn't they have been polluting?