list of english verbs and their tenses, various forms, etc

Question

Is there a huge CSV/XML or whatever file somewhere that contains a list of english verbs and their variations (e.g sell -> sold, sale, selling, seller, sellee)?

I imagine this will be useful for NLP systems, but there doesn't seem to be a listing anywhere, or it could be my terrible googling skills. Does anybody have a clue otherwise?

score 4 · Accepted Answer · answered Dec 16 '12 at 06:45

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Consider Catvar:

A Categorial-Variation Database (or Catvar) is a database of clusters of uninflected words (lexemes) and their categorial (i.e. part-of-speech) variants. For example, the words hunger(V), hunger(N), hungry(AJ) and hungriness(N) are different English variants of some underlying concept describing the state of being hungry. Another example is the developing cluster:(develop(V), developer(N), developed(AJ), developing(N), developing(AJ), development(N)).

answered Dec 16 '12 at 06:45

Kenston Choi

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CatVar doesn't seem to be available anymore, the link is broken. Do you know where else I can find it? – Ogaday Jul 03 '16 at 20:26
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You may try sending an email to the authors of the paper to ask for the official version. I found an unofficial copy in Github (https://github.com/bolei/trigram-classifier/tree/master/src/main/resources/script/catvar21). – Kenston Choi Jul 06 '16 at 06:45

One · Answer 2 · 2012-12-13T15:04:58.960

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I am not sure what you are looking for but I think WordNet -- a lexical database for the English language -- would be a good place to start. Read more at http://wordnet.princeton.edu/

The link I referred to you says that

WordNet's structure makes it a useful tool for computational linguistics and natural language processing.

edited Dec 13 '12 at 15:04

answered Dec 13 '12 at 05:36

One

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score 1 · Answer 3 · answered Dec 13 '12 at 15:15

Considering getting a dump of wiktionary and extracting this information out of it.
http://en.wiktionary.org/wiki/sell mentions many of the forms of the word (sells, selling, sold).

If your aim is simply to normalize words to some base canonical form, considering using a lemmatizer or stemmer. Trying playing with morpha which is a really good english lemmatizer.

list of english verbs and their tenses, various forms, etc

3 Answers3