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In page Māori language:

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The pronunciation of ⟨wh⟩ is extremely variable,[1] but its most common pronunciation (its canonical allophone) is the labiodental fricative, IPA [f] (as in the English word fill). Another allophone is the voiceless bilabial fricative, IPA [ɸ], which is usually supposed to be the sole pre-European pronunciation, although linguists are not sure of the truth of this supposition.[citation needed] At least until the 1930s, the bilabial fricative was considered to be the correct pronunciation.[2] The fact that English ⟨f⟩ gets substituted by ⟨p⟩ and not ⟨wh⟩ in borrowings (for example, English February becomes Pēpuere instead of Whēpuere) would strongly hint that the Māori did not perceive English /f/ to be the same sound as their ⟨wh⟩.