Table 1. Monophthongization Pattern in Yorùbá

English Diphthongs	Yorùbá Corresponding Monophthongs
	Simple	Doubling	Splitting
/eɪ/	[e]	[e.e]	–
/aɪ/	[a], [i], [ε]	–	[a.i]
/ɔɪ/	–	–	[ɔ.i]
/aʊ/	[a], [ã]	–	[a.o]
/əʊ/	[o], [ɔ]	[o.o]	–
/ɪə/	–	–	[i.a]
/eə/	–	–	[i.a]
/ʊə/	–	–	[u.ɔ], [i.ɔ]