"He/she/it pollutes," "(formal singular) You pollute," or (informal singular "you") Pollute!" may be English equivalents of "inquina."
The verb form is the present tense of either the indicative or the imperative. In the indicative the person about whom the speaker is talking is either the third person singular choice of "he/she/it" or the formal "you" ("Lei") in the singular. In the imperative, "tu" as the second person informal "you" is being commanded to pollute.
But whatever the form, the pronunciation is the same, as "een-KWEE-nah."
When translated from English to Italian a raccoon is a procione
"Out" in English is fuori in Italian.
"About" in English is circa in Italian.
"Or" in English is o in Italian.
"Not italian" in English is non italiano in Italian.
"To have" in English means avere in Italian.
"You did" in English is Hai fatto! in Italian.
"We had to..." in English is Abbiamo dovuto... in Italian.
Questa in Italian is "this" in English.
"Who we are" in English is Chi siamo in Italian.
"And you?" in English is E tu? in Italian.
"About me!" in English is Su di me! in Italian.