Sei morta in the feminine and Sei morto in the masculine are just two Italian equivalents of the English phrase "You died." The respective pronunciations will be "seh-ee MOR-ta" and "seh-ee MOR-to" in the masculine.
"Of" is an English equivalent of the Italian word di. The preposition in question also may be translated into English as "about," "by," "from," "in," "out of," "than," "with" according to context. The pronunciation remains "dee" in Italian.
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.
"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.
Questa in Italian is "this" in English.
"You did" in English is Hai fatto! in Italian.