Foreign letters. Letters must be valid in the language being spoken. For example, “ж” is a letter in the Russian alphabet but is never used in English and so should never appear in any English source text.
Maḽeḓere a si ho  kha luambo. Hu tea u shumiswa maḽeḓere ane a vha hone kha luambo lune lwa khou ambiwa. Sa tsumbo, ḽeḓere heḽi “ж” ndi ḽine ḽa wanala kha kuṅwalele luambo lwa Tshirashia fhedzi a ḽiho kha Luisimane nahone ndi ngazwo ḽi songo tea u vha hone kha source text ya Luisimane naho i ifhio.