为什么do some reading用加ing的形式而do some sports不用

为什么do some reading用加ing的形式而do some sports不用 do some reading 为什么要用ing形式 I like doing some reading at home.这里为什么do+ing.而read也加ing 英语中do some+动词ing形式,如do some reading.那do some exercise这个怎么不加l do some reading 的第三人称单数形式 It is also important to do some reading and writing 为什么加ing do some +可以加哪些动词ing形式 do some reading的翻译 do some exercise,为什么不想do some cleanning那样加ING 请问Do you know where I can buy some shampoo?为什么不用any ,而用some Do you have some brothers,Jim?这里为什么用some而不用any do some washing 需要加“ing”吗?