Please note that the letters such as, D,G,J,Q,V,X and Z are not found in the tachoni language.
Letters such as D, G and J can only be found in this language if they are combined with letter N
The major twist is on the letter B which sounds like V though the sound is not same depending on which part of the mouth the sound is produced. The letter V has a sound that comes from between the lower teeth and the upper lip with some air passing through.
The letter B produces a sound that is produced from between the two lips, ie the lower and the upper lips with some some air passing through them.