3.(1) succed
(2) luckily
(3) attacker
(4) poisoner
(5) irregular
(6) death
(7) invention
(8) misterious
4. 1. success -> noun->verb -> succed
2. lucky-> adjective-> adverb->luckily
3. attack-> noun/verb -> noun -> attacker
4. poison-> noun/verb -> adjective -> poisoner
5. regular-> adverb -> adverb -> irregular
6. die -> verb -> noun -> death
7. invent -> verb -> noun -> invention
8. mystery-> noun -> adjective->mysterious
