Answer:
"There are four main kinds of word formation: prefixes, suffixes, conversion and compounds".
-Usually in word formation we combine roots or affixes along their edges: one morpheme comes to an end before the next one starts. For example, we form derivation out of the sequence of morphemes de+riv+at(e)+ion. One morpheme follows the next and each one has identifiable boundaries. The morphemes do not overlap.
