1.invent 名词:invention,人物:inventor,形容词:inventive,副词:inventivly
2.use 名词:usage,人物:user,形容词:useful / useless,副词:usefully / uselessly
3.operate 名词:operation,人物:operator,形容词:operative / operational,副词:operativly
4.dream 名词:dreamland / dreaminess,人物:dreamer,形容词:dreamy / dreamless,副词:ly
5.live 名词:life,人物:liver,形容词:living /lively,副词:livelily
learn learning 学问 learner learned博学地 learnedly
write writing writer written ly
dress dressing dresser dressed / dressy ly
run running runner runny / running ly
clean cleaning cleaner clean ly
please pleasure -- pleasant / pleasing ly