According to how Tachonis speak, they have the following letters.

Aa, Bb, Chch, Ee,Ff, Hh, Ii, Kk, Khkh, Ll, Mm, Nn, Nyny, Ng’ng’ Oo, Pp, Rr, Ss, Tt, Uu, Ww, Yy

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 which sounds like  though the sound is not same depending on which part of the mouth the sound is produced. The letter has a sound that comes from between the lower teeth and the upper lip with some air passing through.

The letter 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.