2. Gerund
3. Gerund
4. Gerund
5. Gerund
6. Participle
7. Participle
8. Gerund
9. Infinitive
10. Gerund
11. Gerund
12. Participle
13. Gerund
14. Participle
15. Gerund
16. Infinitive
17. Participle
18. Gerund
19. Gerund
20. Participle
Answer:
i finished the work i was doing
Social skills
social communication
interpersonal communication
