<span>The following best describes a vocabulary system called Word Forms:
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B. Learn how a root word changes when used as a noun, verb, adjective, or adverb to learn multiple related words at the same time.
It's subordinate. Meaning that it is dependent on the main clause.
Ok so here are the three sentences it leads up to.
The mission was accomplished.
A dog got in her way.
The mission was finished in 15 minutes.
