Vowels

Fuyug possesses five vowel phonemes.^[3]

The vowel /ɛ/ is pronounced as the diphthong [ɛi̯] when word-final as well as before a word-final consonant. For example, ateg ("truth") is pronounced [ɑˈtɛi̯ɡ] and ode ("where") as [oˈdɛi̯].^[4]

All vowels are nasalised before a nasal consonant, as in in ("pandanus") [ˈĩn], ung ("nose") [ˈũŋɡ], em ("house") [ˈẽĩ̯m].^[5]

Consonants

Fuyug has 14 consonant phonemes.^[6]

The voiceless plosive are aspirated in a word-final position and before /i/: endanti ("outside") [ɛ̃nˈdɑ̃ntʰi], oki ("fire") [ˈokʰi], eyak ("return") [ɛˈjɑkʰ].^[6]

The nasal phoneme /n/ assimilates before a velar consonant becoming [ŋ] : yangos ("rain") [jɑ̃ŋˈɡos].^[7]

The pronunciation of the liquid /l/ is in free variation between a lateral [l] and a flap [ɾ]. However, with the exception of words of foreign origin where the word in the source language is written with an r, this is represented in the orthography as l.^[4]

Syllables

Fuyug syllables come in the shape (C)V(C)(C). There cannot be more than two consonants adjacent to one another word-internally and the only final clusters permitted are mb, nd and ng. Within a word vowels may not follow one another.^[8]

Stress

Stress in Fuyug is predictable. Stress falls on the final syllable in mono- and disyllabic words and on the antepenult in words of three of four syllables. Affixes do not alter the stressed syllable.^[9]

Morphophonology

Certain suffixes (notably the illative -ti) cause a change in the end of the word to which it is attached:^[10]

• m assimilates to n before t: im + -ti → inti ("in the eye")
• l is elided before t: uwal + -ti → uwati ("in the heart")
• Voiced plosives are devoiced at the end of a word when the following word begins with a vowel or a voiceless consonant: enamb + fidan → enamp fidan ("a road"), asang + ukas → asank ukas ("a lot of sand").
• an i is inserted between two consonant if the first is not l or a nasal: ev + -ti → eviti ("in the Sun"). With certain verbal suffixes an e is inserted: id + -ngo → idengo ("is sleeping").
• When a root with a final vowel has suffix or clitic attached to it that begins with a vowel, the first vowel is deleted: ne + -a → na ("he eats").

Personal pronouns

Fuyug has personal pronouns for three numbers (singular, dual, plural) but not gender distinction.

These pronouns can take four different suffixes: the genitive -l or -le, the emphatic -ni, the comitative -noy and the contrastive -v.^[11]

Numerals

Numerals in Fuyug are very restricted, having only fidan ("one") and yovalo ("two"). The numbers 3, 4 and 5 are composed of 1 and 2:

• 3: yovalo hul mindan ("two its other")
• 4: yovalo ta yovalo ("two and two") ;
• 5: yovalo ta yovalo ta hul mindan ("two and two and its other").

After five English numerals are used (numbers less than five often do so as well). The quantifier huka ("a lot") is also used after three.^[12]