How to get the infinitive form of the verb using NLTK (pos tagging)

Question

I'm trying to learn natural language processing (of English) using NLTK and Python. Is there a way to get the infinitive form of the verb during or after POS-tagging.

For example:

is (VBZ) => to be
provided (VBN) => to provide
using (VBG) => to use

ot a full answer, but I would investigate WordNet (yes, NLTK had WordNet as a download) — winwaed, Mar 19 '12 at 01:18

score 21 · Accepted Answer · answered Mar 19 '12 at 02:52

21

Close, you'll need to add the 'to' at the beginning:

>>> from nltk.stem.wordnet import WordNetLemmatizer
>>> lemmatizer = WordNetLemmatizer()
>>> lemmatizer.lemmatize('is', 'v')
'be'
>>> lemmatizer.lemmatize('provided', 'v')
'provide'
>>> lemmatizer.lemmatize('using', 'v')
'use'

answered Mar 19 '12 at 02:52

Ambidextrous

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Do you have some suggestion for other langage like French? – mee Mar 18 '19 at 11:58
@mee use `SnowballStemmer("french")` – nelsontruran Jul 06 '22 at 19:07

How to get the infinitive form of the verb using NLTK (pos tagging)

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