Non ne ho voglia! and Non voglio! are Italian equivalents of the English phrase "I don't want to!" Context makes clear whether "I have no craving (desire, longing, will)" in the first instance of "I dont' want!" in the second suits. The respective pronunciations will be "no-ne o VO-lyo" and "non VO-lyo" in Italian.
"I want to learn Italian!" in English is Voglio imparare l'italiano! in Italian.
"I want to be with you!" in English is Voglio essere con te! in Italian.
"Do you want to play?" in English is Vuoi giocare? in Italian.
"I don't want" in English means Non voglio in Italian.
La voglio in Italian means "I want her" or "I want it" in English.
"I want coffee!" in English is Voglio del caffè! in Italian.
"Do you want a chocolate?" in English is Vuoi un cioccolato? in Italian.
vogliamo
"I want to be friends with you!" in English is Voglio che siamo amici! in Italian.
"Do you want to go to lunch?" in English is Vuoi andare a pranzo? in Italian.
"Do you want to drink something?" in English is Vuoi bere qualcosa? in Italian.
"You're the one I want!" in English is Sei ciò che desidero! in Italian.