Arun-onsentenceisagrammaticalerrorthatoccurswhentwoormoreindependentclausesarejoinedtogetherwithoutproperpunctuationorconjunctions.Thiscreatesasentencethatistoolonganddifficulttoreadbecauseitlacksthenecessarybreaksorconnectorstoclearlyseparateideas.Therearetwomaintypesofrun-onsentences:fusedsentences,whichhavenopunctuationatallbetweenclauses,andcommasplices,whichincorrectlyuseonlyacommatojoinclauses.Tofixrun-onsentences,youcanaddaperiodtocreateseparatesentences,useasemicolon,addacoordinatingconjunctionlike"and"or"but,"orrephrasethesentence.Properlystructuredsentenceshelpmakewritingclearerandeasiertounderstand.
