Can't figure out how to solve a problem in Python?

Question

Python

Use regular expressions to find all declensions of the word, the single word "time" in the text. If it is contained within another word, there must be no match.

Answer 1

1) Decline the word "time"
2) A "single" word is easily identified by a leading and trailing space
3) Your regular expression: whitespace, plus root, plus combinations of all possible suffixes, plus a trailing space.
I leave the compilation of a specific expression to you as a task for mastering the described theory.