Are there published generative grammars for natural languages?

The most comprehensive context-free grammar for English that I know of is the one described in.

The most comprehensive context-free grammar for English that I know of is the one described in: Gazdar, Gerald; Ewan H. Klein, Geoffrey K. Pullum, Ivan A.Sag.1985.

Generalized Phrase Structure Grammar. Oxford: Blackwell. There are also several rule-based but non-context-free grammars freely available online, e.g. , the Penn XTAG grammar or the HPSG English Resource Grammar.

You might want to look at Attempto Controlled English and its Prolog-based tools. Since statistical parsing came in vogue in the early 90s, grammars have usually not been distributed, except for specific problem domains, but derived from distributed corpora such as the Penn Treebank. If you can get a hold of that (I believe a sample is distributed with NLTK), you can "roll your own" grammar by looking at all tree fragments and translating them to rules.(E.g.

, if you find a node labeled S with children labeled NP and VP, you know there should be a rule S -> NP VP. Pruning the rules that occur infrequently would be a good idea. ).

1 for explaining the nature of the sources – spraff Jul 6 at 8:47.

Look into the Grammatical Framework. It is a functional programming language for multilingual grammar applications which comes with libraries for ~26 languages, among them English.

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