Les systèmes consonantiques des langues africaines

Les 5 systèmes (sur ) où le phonème tw est attesté :
1. anyanga 2. cherepon (chrepong) 3. guus (sigidi) 4. tomo kan 5. zodi (dott)		Consonnes (β) b̃ b bb bbw bv bw by ɓ ɓy c̣ c ç ç̃ cc ch cʰ cw cʼ ƈ d̪ ḍ d dd dh dj dɭ dr dü dw dy dz dzh dzw dʒ dʼ ɖ ɗ ɗy ð ðð f ff fh fhw fw fy fʼ ƒ G g gb gbr gɓ gg gh gm gn gw Gw gʷ gy ɠ ɣ ɣ̃ ɣʷ ɣw h H h̰ hʲ hʷ hw hy ħ ɦ Ĩ j jj jw jʼ ɟ ʄ k ḳ kʰ kk kkw km kp kpr kʷ kw kx kxʼ ky kʼ kʼw kʼy ƙ ƙw ƙy l ĺ l̥ l/r lh ll lü lw ly lʼ ɬ ɬw ɬy ɬʼ ɭ ɮ ɮw ɮy ʎ m̥ m mb mbv mbw md mf mɦ mm mp mpf mv mw my mʼ ɱ n̥ n nc nd̪ nd ndr ndw ndz ndʒ nɖ nɖɭ ng nG ngb ngbr ngʷ ngw ngy nh nɦ nj njw nk nkp nkw nm nn ns nt nts nʈ nw ny nz nʒ nʼ nθ ɲ ɲɲ ɲw ɳ ŋ ŋ̦ ŋm ŋŋ ŋw ŋʷ ŋy p̃ p pf ph pʰ pɦ pp ppy pw py pʼ ƥ ɸ q qw r̃ ṛ ṛ r rh rr rw ry rʼ ɽ ɾ ʁ s ṣ ṣ sh ss sü sw swy sy sʼ ʃ ʃh ʃw t̠ t t̪ ṭ tc tcx th tʰ t̠ʰ tɦ tɬʼ tɭ tr ts tsh tsɦ tsw tsx tsʼ tʃ tʃh tʃx tʃʼ tt tü tw tx txʼ ty tʼ t̠ʼ ƭ ʈ ʈʈ ṽ v vm vv vw vy ʋ w w̃ w̥ ww wy wʔ wʼ x xʷ xw ỹ y ỹ yü yw yy yʔ ƴ z ẓ ẓ zɦ ʒ ʒh ʔ ʔʲ ʔl ʔw ʔy ˀm ˀn ʼ ʼm ʕ ǀ ǂ β θ θh λ µ χ