She thinks that writers return to "backwards" parts of the process in order to move "forward" with the overall composition. ESL teachers may find this approach helpful at first in teaching beginning ESL students because at this level students do not have large amounts of vocabulary and grammar or knowledge of the style of essays which is the basis of writing English. Al-Buainain Haifa in her article "Student Writing Errors in EFL," points out that, when a researcher asked ESL students by using a survey what they would like to have learned or learned better in their writing classes, they found that the largest percentages expressed specific needs in vocabulary and grammar.[20] Many kinds of grammar make ESL students confused, especially because there are many exceptions.