In language learning , studying the errors done by language learners is the main focus both in the mistakes in speaking and writing. Errors analysis will give beneficts in three ways: (1) language errors made by the learners can be a good inout for teachers on how far the learners get progress and what areas need to be improved.(2) The errors can be an evidence for the researchers on how to learn a language and what kind of strategy to lern it. (3) the errors found out can be used as feedback for the learners. After finding out the language errors made by learners, the language learners need to think about what the have to do nest to overcome the problems. There are some questions need to be thought by a teacher: (1)) Do the errors need correction? (2) if necessary, when do the errors need corrections? (3) Which Errors need correction? (4) HOw do the errors need corrections? And (5) Who have to do the corrections?