Final syllable tone change primarily appears on tone I when it is the final syllable, and secondarily appears on tone III as final syllable.It also occurs on IVB when after IA, IB and IIIA.

• 后字变调最主要地出现在平声作后字时，其次出现在去声作后字时，阳入位于阴平、阳平、阴去后面时也发生变调。