Students often use the wrong syntax, because some countries might have the main structure of the language differs from English, so this is why the majority of the students are using the wrong syntax.
Students often use the wrong syntax. Some countries may have the structure of a language different from English. It is why most students use the grammar.
Most students often use bad grammar principle. Because some countries may have the structure of languages different from English. It is the reason that most of the students use the grammar mistakes.