Ninu ede Africa Yes/no question most commonly involve only a question marker or morpheme at the end or the beginning of the sentences.. 
Inú òṣùpá tí à ń sọ̀rọ̀ rẹ̀ yìí ọjọ́ méjì tí ẹ oṣù kan ti wà ni ó ṣe méjì gbáko loorun a fi rán.. 