it's very common for tongue-tip ("coronal") consonants to become
In other cases, a sound change may be "conditioned" so as to
apply in certain kinds of environments and not in others. For example,
it's very common for tongue-tip ("coronal") consonants to become
palatal when they are followed by high front vowels. The residue of this
process can be seen in English pairs like divide/division, fuse/fusion,
submit/submission, oppress/oppression.