VIII The terminations -able, -ible, -tion, -cial, -tive, and -ive should go over to the next line.

read-able
convert-ible
inten-tion
discuss-ion

The termination -sion ordinarily goes over as in

occa-sion
apprehen-sion
cis-sion
declen-sion

Occasionally, however, the strong emphasis needed for the s will call for a different arrangement, as in divis-ion.

IX The terminations -ing, -en, -ed, -er, -est, and the plural -es go over to the next line except when the preceding consonant is doubled, or when they follow c or g soft.

lead-ing
beat-en
larg-er, but
lat-ter
for-cing
ran-ging

X Do not end a line with j or with c or g soft.

pro-cess
ne-cessary
pre-judice
prog-eny

XI Adjectives in ical divide on the i.