2017 January 31, Emma Kennedy,Shoes for Anthony: A Novel[1], Macmillan,→ISBN,→OCLC, page115:
'Pair of shoes for you at last.' I picked one up. It was weathered, with a split heel and no laces. 'Too big for me,' I said, dropping it back to the floor. 'Wanna look at the Germans, like?' said Ade, standing. 'Proper, like? Come on.[…]
The spoken contractions are widespread in everyday informal speech. The written contractions are inappropriate outside informal writing or transcription of casual speech.
Wanna is less commonly and less regularly used as a contraction ofwants to andwants a.
Oskar Kolberg (1877), “wanna”, in “Rzecz o mowie ludu wielkopolskiego”, inZbiór wiadomości do antropologii krajowéj (in Polish), volume 1, III (Materyjały etnologiczne), page24
