python - 以 'e'结尾的英语动词处理

Question

考虑到这些转换，我正在实现一些字符串替换器

'thou sittest' → 'you sit'
'thou walkest' → 'you walk'
'thou liest' → 'you lie'
'thou risest' → 'you rise'

如果我保持天真，在这种情况下可以使用正则表达式来查找和替换，例如 thou [a-z]+est

但问题来自以 e 结尾的英语动词，因为根据上下文我需要修剪 est in some & trim just st在休息

实现此目标的快速解决方案是什么？

Answer 1

可能是最快最脏的:

import nltk
words = set(nltk.corpus.words.words())
for old in 'sittest walkest liest risest'.split():
    new = old[:-2]
    while new and new not in words:
        new = new[:-1]
    print(old, new)

输出:

sittest sit
walkest walk
liest lie
risest rise

更新。稍微不那么快速和肮脏(例如适用于 rotest → 动词 rot，而不是名词 rote):

from nltk.corpus import wordnet as wn
for old in 'sittest walkest liest risest rotest'.split():
    new = old[:-2]
    while new and not wn.synsets(new, pos='v'):
        new = new[:-1]
    print(old, new)

输出:

sittest sit
walkest walk
liest lie
risest rise
rotest rot