What you need to know
To achieve 100 you need to know how to add suffixes to words.
- The sound shun at the end of words can be spelled in different ways.
- The most common spelling of the shun sound is -tion. It is used if the root word ends in t or te (e.g. invent = invention).
- -sion is used if the word ends in d or se (e.g. revise = revision, expand = expansion).
- -cian is used if the root word ends in c or cs (e.g. musician). These words often refer to a person's job.
- -ssion is used if the root word ends in ss or mit (e.g. express = expression, permit = permission).