Standard Kinukibeo

Consonant	Bilabial	Alveolar	Velar	Glottal		Vowel	Front	Back
Voiceless, Stop	p	t	k			Dark (Close)	i	u
Voiced, Stop	b	d	g			Light (Close-Mid)	e	o
Nasal, Stop	m	n	ŋ			Neutral (Open)	a
Fricative
Approximate

• Diphthong: iu, eu, au, io, eo, ao
• Syllable Structure: (C)V(C)

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graph TD 
A[Proto-Island Language] --> B[Old Kinukibeo]
B --> C[Middle Kinukibeo]
C --> D[West Kinukibeo]
C --> E[East Kinukibeo]
E --> F[Standard Kinukibeo]
D --> G[Mountain Kinukibeo]

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Late-Middle Kinukibeo

Consonant	Bilabial	Alveolar	Velar	Glottal		Vowel	Front	Back
Voiceless, Stop	p	t	k			Dark (Close)	i	u
Voiced, Stop	b	d	g			Light (Close-Mid)	e	o
Nasal, Stop	m	n	ŋ			Neutral (Open)	a
Fricative				h
Approximate	w	l	j

• Diphthong: None
• Syllable Structure: (C)(C)V(C)

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Early-Middle Kinukibeo

Consonant	Bilabial	Alveolar	Velar	Glottal		Vowel	Front	Back
Voiceless, Stop	p	t	k, kw	?		Dark (Close)	i, i:	u, u:
Voiced, Stop	b	d	g, gw			Light (Close-Mid)	e, e:	o, o:
Nasal, Stop	m	n	∅			Neutral (Open)	a, a:
Fricative				h
Approximate	w	l	j

• Diphthong: None
• Syllable Structure: (C)(C)V(C)

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Early Kinukibeo

Consonant	Bilabial	Alveolar	Velar			Vowel	Front	Back
Voiceless, Stop	p	t	k, kw	?		Dark (Close)	i, i:	u, u:
Voiced, Stop	∅	∅	g, kw			Light (Close-Mid)	e, e:	o, o:
Nasal, Stop	m	n	∅			Neutral (Open)	a, a:	ə, ə:
Fricative		s, ʃ		∅
Approximate	w	l	j

• Diphthong: None
• Syllable Structure: (C)(C)V(C)