<p><span lang="IN">Grammatical error is difficult to be avoided by every learner. Grade 7 students in class observed are smart enough. Yet, they frequently make grammatical errors in the sentences when they write essay. Because of that, analyzing the errors in writing is one of appropriate ways to know student’s ability. In this research, the researchers ask the students to make descriptive text or essay. There are 7 titles of essay that each student can choose. There are only 7 texts that the researchers analyze in which each text represents different title of text. To analyze the texts, the researchers use Corder’s theory which focuses on 4 types of error, namely: (1) Error of Omission, (2) Error of Selection, (3) Error of Addition, and (4) Error of Ordering. The highest percentage of error is Error of omission that takes 45.28%. Error of Selection, Error of Addition, and Error or Ordering follow with 33.96%, 18.87%, and 1.88%. Based on the analysis, the reasons of why the students make errors are: (1) the students do not master grammar in detail, (2) the students forget the grammar rules though they have learnt it, and (3) the students have limited vocabularies. Further studies need to be conducted for more detail findings.</span></p>

Firstly, the research aims to know what lecturers use methods of teaching English via an Online Learning System. Secondly, the activities both the lecturers and students have during the learning process. This research is limited to what methods the lecturers apply in teaching English for English department students via an online learning system to build students' enthusiasm for learning. The process of research used is qualitative research. In collecting data, the researcher used observation. There are 8 respondents in this research. They are all lecturers teaching in English Department. The result shows that the lecturers use applications in teaching English, namely Google Classroom, Google Meet, Zoom, and the Learning Management System (LMS) of Darma Persada University, namely portal.unsada.ac.id. The latest application is an official site that lecturers and students use to proceed with the teaching-learning process. The research also finds that lecturers do several activities in the learning process. They fill in the blank, read aloud, answer questions, picture describing, drilling, and presentation techniques. The research shows that those all activities are the most suitable with learning system using online. Meanwhile, in terms of teaching techniques, most of the lecturers use communicative language teaching, grammar-translation, and audio-lingual method.