Improve your vocabulary with prefixes and roots. Prefixes are added beginnings of words. They add to or change the meaning of the word.
The word view means “look at“.
Add re and it means “look at again“.
Add pre and it means “look at before“.
Below are the 10 most common prefixes and roots in English
Exercises:
http://www.english-grammar.at/online_exercises/prefixes-suffixes/prefixes-suffixes1.htm
http://www.english-grammar.at/online_exercises/prefixes-suffixes/ps004-negative-prefixes.htm
http://www.english-grammar.at/online_exercises/prefixes-suffixes/prefixes-suffixes2.htm
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