Vocabulary - Pre & Post

In English there are many prefixes and suffixes. These are word "parts" that come before or after a word, or inside the word at the front or back. Japanese has many, too. Most of the English ones come from Latin.

For example:
convenient < -- >  inconvenient     便利　　不便

For the Japanese "fu" 不 we have some prefixes in English. Before you continue reading, can you think of them?
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in, un, im  are 3. Try to think of some words which use them.

inconvenient
unhappy
impatient

Two words that I used a lot last week were "pre-war" and "post-war". I told some students that I was surprised how many buildings in Kyoto are from the post-war period, because I expected most of Kyoto architecture to be pre-war.  戦前・戦後

"pre" comes from Latin and means:
earlier, before, prior to  -  pre-war
in preparation for      -  prepare
in advance                    -  prepay
in front of                      -  precede

"post" is also Latin and means:
after, later                  -  postpone
behind                          -  postern (the back gate (of a castle, etc)