Using NLTK and WordNet; how do I convert simple tense verb into its present, past or past participle form?

Question

Using NLTK and WordNet, how do I convert simple tense verb into its present, past or past participle form?

For example:

I want to write a fu

Answer 1

For Python3:

pip install pattern

then

from pattern.en import conjugate, lemma, lexeme,PRESENT,SG
print (lemma('gave'))
print (lexeme('gave'))
print (conjugate(verb='give',tense=PRESENT,number=SG)) # he / she / it

yields

give ['give', 'gives', 'giving', 'gave', 'given'] gives

thnks to @Agargara for pointing & authors of Pattern for their beautiful work, go support them ;-)

PS. To use most of pattern's functionality in python 3.7+, you might want to use the trick described here