nasal clicks is unusual, but has also been reported from ǂʼAmkoe and Yeyi since Nakagawa announced its discovery in Gǀui. The Khute dialect of Gǀui also has preglottalized nasal clicks allophonically. They developed from glottalized nasal clicks before pharyngealized vowels, perhaps under ǂʼAmkoe influence: Other consonants Most words are of the form CV, CVV, CVCV, CVN, where C stands for a consonant, V for a vowel, and N for a nasal consonant (m, n). In CVCV words, only a limited set of consonants () may occur in medial position (the second syllable). Of these, two () may not occur at the beginning of a word, and due to restrictions with nasal vowels may be argued to be allophonic. The is pronounced after a lateral click or a pharyngeal vowel (but not after a velar ejective ). only occurs in mimesis. occurs in a single word, t'aa 'to carve', which is not widely known. The palatals, which are unique among Khoisan languages to Gǁana-Gǀui, derive historically from the alveolars before non-pharyngealized vowels. In Gǁana this shift has only partly occurred. and have also been analyzed as and , the ejective homologues of and . However, their pronunciation is and . Vowels Gǀui has five modal vowels, , three nasal vowels, , and two pharyngeal vowels, . There are diphthongs and , but they are allophones of . Gǀui also has breathy-voice vowels, but they are described as part of the tone system. Only the five modal vowels occur in monomoraic (CV or V) roots, which except for the noun χò 'thing, place, case' are all grammatical morphemes. These are reduced to three nasal vowels after nasal consonants, including the glottalized nasal clicks. The modal vowels and the pharyngeal vowels, , occur as the first vowel (V1) of bimoraic roots, CVCV, CVV, and CVN, though the modal vowels are reduced to before a nasal coda, CVN. This corresponds to in Gǁana. Pharyngeal and are also in complementary distribution: in CVV words and in CVCV and CVN words; some speakers use in CVV roots too, so that their pharyngeal vowels are reduced to . The modal and nasal vowels (but not the pharyngeals) occur as the second vowel (V2) of bimoraic roots, CVCV or CVV, though only modal vowels may follow the medial consonants , and only nasal vowels follow the medial consonants . Either oral or nasal vowels may follow or null