Grammatical Errors In English

Richards (2006: 3) states that the writers’ grammatical competence refers to their knowledge about a language. They are the ability to produce sentences correctly with well-structured and understandable sentences. However, it is difficult for second language learners to avoid as well as tackle grammatical issues in their writing. Those grammatical errors may be obstacles for communication proficiency or writing’s success.
There are few studies in Vietnam conducting grammatical errors, and some Vietnamese researchers only devote to the study on common written errors. However, most thesis are discovered that grammatical errors are being the most dominant among written errors such as style, general items (language style and expression in particular), syntax, mechanics and lexical items. To explain, according to an investigation into “Common written errors committed by first year students at Nghe An economics and technology college” of Thuy (2010), for example, the six most common types of errors made by students here are preposition errors, article errors, verb tense errors, verb form errors, pluralization errors and subject-verb disagreement. Interestingly, they all belong to grammatical errors. Tram (2010) with the thesis called “Common written errors committed by first year

Below are some examples of the grammatical errors found in the research of Thuy (2010):
1) Preposition errors:
The prepositional errors are made in three different ways, namely omitting the preposition, adding the wrong preposition, and misusing the preposition.
- Omit prepositions: There are four books the table.  There are four books on the table.
- Add prepositions: This book brings for us much useful knowledge.  This book brings us much useful