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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⟩.