An Analysis of Students' Grammatical Error Identified by Grammarly

The primary goal of this study is to examine the most common grammatical errors found by Grammarly in students’ writing. The sample was document of essays final written by students in the Department of English Language Education at Ar-Raniry State Islamic University from the 2019 batch. The data was collected from 20 (twenty) documents. This research employed a qualitative data approach, and the coder theory became the primary key in data analysis. Based on the analysis, the researcher discovered that the most common errors in selection after using Grammarly premium version were sentence pattern (40,28% or 141 errors), punctuation (13,2% or 48 errors), spelling (12% or 42 errors), preposition (9,14% or 32 errors), article (8,3% or 29 errors), tenses (8% or 28 errors), conjunction (6% or 21 errors), and pronoun (2,57% or 9 errors). Based on the results, it is determined that the highest grammatical error identified by Grammarly is sentence pattern while the lowest is pronoun.