1.) Wala ka bang pera? (ka precedes particles like ba, din/rin and naman)
2.) Saan ka nakatira ngayon? (you generally don't need ba in an interrogative sentence like this one that starts with saan)
3.) Gusto kitang tulungan. (since kita is a dual pronoun, you won't need ko in this sentence)
4.) Paano mong sabihin yan? (the pronoun always follows paano, bakit and saan in a sentence)
5.) Ano yang pananalitang sinabi mo?
6.) Gustong-gusto kong bumalik sa Pilipinas. (sauli is used for returning objects, whereas bumalik involves an actor physically returning to a place)