1. clean и cleanly; clear и clearly;
2. cheap и cheaply; close и closely; dead и deadly;
3. direct и directly; easy и easily; fair и fairly;
4. firm и firmly; fine и finely; flat и flatly;
5. free и freely; hard и hardly; high и highly;
6. just и justly; large и largely; loud и loudly;
7. low и lowly; most и mostly; pretty и prettily;
8. quick и quickly; real и really; right и rightly;
9. sharp и sharply; slow и slowly; short и shortly;