Whether writing inverted sentences in doctoral thesis is plagiarism needs specific analysis.

First of all, judging whether it constitutes plagiarism depends on whether the author quotes and marks the quoted content properly when writing inverted sentences. If the author has clearly marked the source of the quotation, the content of the quotation must be reasonable and generally does not constitute plagiarism.

Secondly, if the author quotes a lot of content, or the quoted content is not highly relevant to the theme and content of his paper, and it is not fully explained and marked, it may be considered plagiarism.

Finally, the judgment of plagiarism is also related to specific schools, institutions and duplicate checking software. Different schools, different institutions and different duplicate checking software may have different standards and judgment methods. Therefore, when writing a paper, the author should understand the specific requirements of schools, institutions and duplicate checking software and follow the corresponding norms and standards.