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 must not pollute
you must not pollute
she must not pollute
we must not pollute
you must not pollute
they must not pollute 	I must not be polluting
you must not be polluting
she must not be polluting
we must not be polluting
you must not be polluting
they must not be polluting	I must not have polluted
you must not have polluted
she must not have polluted
we must not have polluted
you must not have polluted
they must not have polluted	I must not have been polluting
you must not have been polluting
she must not have been polluting
we must not have been polluting
you must not have been polluting
they must not 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 	
must I not pollute?
must you not pollute?
must she not pollute?
must we not pollute?
must you not pollute?
must they not pollute? 	must I not be polluting?
must you not be polluting?
must she not be polluting?
must we not be polluting?
must you not be polluting?
must they not be polluting? 	must I not have polluted?
must you not have polluted?
must she not have polluted?
must we not have polluted?
must you not have polluted?
must they not have polluted? 	must I not have been polluting?
must you not have been polluting?
must she not have been polluting?
must we not have been polluting?
must you not have been polluting?
must they not have been polluting?