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The grammar of a natural language is a group of structural constraints on the speaker's or writer's construction of clauses, phrases, and words. Theoretical linguistics has developed grammatical structures that seek to give an accurate scientific theory of the syntactic rules of grammar and their function.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.