Comprehensive answer keys for both Part 1 and Part 2 are available on several educational platforms:
: Frequent exercises on the use of "НЕ" with various parts of speech.
: Parents can use online portals like Lolkek or GDZ.fm to verify their child's homework quickly.
: Students use them to check their work after completing exercises to identify and understand their mistakes.
: Deep dives into participles ( причастия ), gerunds ( деепричастия ), and adverbs ( наречия ).