In recent years the Book of Mormon has been compared to pseudo-biblical texts like Gilbert J. Hunt’s The Late War (1816). Some have found strong linguistic correspondence and declared that there is an authorial relationship. However, comparative linguistic studies performed to date have focused on data with low probative value vis-à-vis the question of authorship. What has been lacking is non-trivial descriptive linguistic analysis that focuses on less contextual and more complex types of data, such as syntax and morphosyntax (grammatical features such as verb agreement and inflection), as well as data less obviously biblical and/or less susceptible to conscious manipulation. Those are the kinds of linguistic studies that have greater probative value in relation to authorship, and that can determine whether Joseph Smith might have been able to produce Book of Mormon grammar. In order to determine whether it is a good match with the form and structure of pseudo-biblical writings, I investigate nearly 10 kinds of syntax and morphosyntax that occur in the Book of Mormon and the King James Bible, comparing their usage with each other and with that of four pseudo-biblical texts. Findings are summarized toward the end of the article, along with some observations on biblical hypercorrection and alternative LDS views on Book of Mormon language.