请问动词变名词是那些词+tion,那些+ment,那些+er,or?形容词变名词时哪些加ness,那些不加?
问题描述：
请问动词变名词是那些词+tion,那些+ment,那些+er,or?形容词变名词时哪些加ness,那些不加?
举几个例子
答
invent --invention pronounce ---pronunciation move ---movement equip--equipment work---worker swim ---swimmer visit---visitor operate ---operatorill--illness sick ----sickness