This study is about the similarity of grammatical errors between children with different
nationalities and mother tongues, Korean, Mandarin, Indonesian, and English. The focus is on
the grammatical errors of the children in the same age. The thesis writer analyzes the
grammatical errors of the children and tries to find out the similarities between them even though
they have different nationalities and different mother tongues.
The writer does this study by recording the sentences produced by the children in an
English-speaking environment and the data used in this research is the sentences with
grammatical errors. The sentences are categorized based on the characteristic of the errors.
The result of this study reveals that some of the grammatical errors, spotted by the writer,
are similar even thought not every error is identical. From the kind of errors and their
similarities, the writer concludes that children with different nationalities and mother tongues,
Korean, Mandarin, Indonesian, and English, can create similar errors when they are acquiring
English as their second language.