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The consonant letters of #TeReo Māori, their (typical) sounds & how some other languages (often) do them, a thread.... 
The letter “h” (as in haka) in Te Reo is a glottal fricative - the vocal chords are tightened & air is puffed out 
This sound is shown by the letter(s)
sh in Irish
g in Galician
ჰ in Georgian
Гь in Avar
h in English
...
This sound is shown by the letter(s)sh in Irish
g in Galician
ჰ in Georgian
Гь in Avar
h in English
...
The letter “k” in Te Reo (as in kai) is a velar stop - the back of the tongue hits the back of the roof of the mouth & air is momentarily blocked 
This sound is
c in Vietnamese,French,Portuguese & Italian
g in Danish
ק in Hebrew
Qu in Catalan
ک in Pashto
...
This sound isc in Vietnamese,French,Portuguese & Italian
g in Danish
ק in Hebrew
Qu in Catalan
ک in Pashto
...
The letter “m” in Te Reo Māori (as in moana) is a voiced bilabial nasal, you chose your lips, vibrate your vocal chords & breathe out through your nose 
This sound is
μ in Greek
მ in Georgian
ম in Bengali
Մ in Armenian
...
This sound isμ in Greek
მ in Georgian
ম in Bengali
Մ in Armenian
...
The letter “n” in Te Reo Māori (as in noa) is a voiced bilabial nasal, you chose your lips, vibrate your vocal chords & breathe out through your nose This sound is
น and ณ in Thai
ન in Gujarati
نون in Persian
n in English
...
This sound isน and ณ in Thai
ન in Gujarati
نون in Persian
n in English
...
The letter “p” in Te Reo Māori (as in Pākehā) is a voiceless bilabial plosive, you press both lips together & then open them 
This sound is
b in Luxembourgish
b or p in Danish
н in Adyghe, Kabardian and Macedonian
ㅂ, ㅃ and ㅍ in Korean
...
This sound is b in Luxembourgish
b or p in Danish
н in Adyghe, Kabardian and Macedonian
ㅂ, ㅃ and ㅍ in Korean
...
The letter “r” in Te Reo Māori is a voiced alveolar tap (as in Reo Māori, your tongue quickly & lightly taps against the ridge above your top teeth This sound is
d in Danish
tt in some varieties of English
ρ in Greek
...
This sound isd in Danish
tt in some varieties of English
ρ in Greek
...
The letter “t” is a dental or alveolar plosive (as in tuatara), your tongue presses against your top teeth/the ridge above your top teeth
The dental version of this sound is
th in some varieties of Irish-English
d in Nunggubuyu
...
The dental version of this sound is
th in some varieties of Irish-English
d in Nunggubuyu
...
The alveolar version of this sound is
т in Kyrgyz and Ukrainian
d in Norwegian
т in Adyghe
...
т in Kyrgyz and Ukrainian
d in Norwegian
т in Adyghe
...
The letter “w” in Te Reo (as in waka) is a bilabial semivowel, the lips are rounded and the back of tongue is raised towards the back of the mouth This sound is
ou in French
v in Irish
ў in Belarusian
Ł in Polish
w in English
This sound is ou in French
v in Irish
ў in Belarusian
Ł in Polish
w in English
The letter “ng” in Te Reo Māori (as in Ngāti) is a voiced velar nasal, the back of the tongue is raised to back of the mouth & air comes out your nose This sound is
ŋ in Bambara and Dinka
n in Faroese
ng in “singer” in English
This sound is ŋ in Bambara and Dinka
n in Faroese
ng in “singer” in English
The letter “wh” in Te Reo Māori (as in whare) is a labiodental fricative, your bottom lip touches your top teeth & air comes out This sound is
φ in Greek (as in φύοη)
פ ף in Hebrew
Ф in Chechen
Ֆ in Armenian
ف in Arabic
v in Malay
f in English
...
This sound isφ in Greek (as in φύοη)
פ ף in Hebrew
Ф in Chechen
Ֆ in Armenian
ف in Arabic
v in Malay
f in English
...
So yea, no sounds are inherently “fixed” to ANY letter.
“Wh” can absolutely mean an “f sound” and particular sounds in Te Reo Māori can absolutely & logically be represented by the letters “ng” & “r” etc Anyone who thinks otherwise is just plain wrong 
Pōmarie 
“Wh” can absolutely mean an “f sound” and particular sounds in Te Reo Māori can absolutely & logically be represented by the letters “ng” & “r” etc
Anyone who thinks otherwise is just plain wrong Pōmarie
