0

This question already has an answer here:

Does an official set of production rules (formal grammar) for English exist? Something along the lines of:

Sentence -> Clause EndPunctuation
Clause -> Subject Predicate
Subject -> NounPhrase
NounPhrase -> Determiner Noun
            | Adjective Noun
EndPunctuation -> EndPunctuation EndPunctuation
                | .
                | !
                | ?

If so, where can it be found?

marked as duplicate by deadrat, ScotM, Edwin Ashworth, choster, tchrist Jul 16 '15 at 23:41

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2

No. (I don't know what "official" would mean, here.) The closest thing I know to that is the book GPSG (see Generalized Phrase Structure Grammar), which however does not claim to give a comprehensive account of English, and would not give a practical parser. It would have to be supplemented with a lexicon. It is a context free phrase structure grammar for a part of English, though.

Not the answer you're looking for? Browse other questions tagged or ask your own question.