she likes swim是病句吗?要加ing吗?

she likes swim是病句吗?要加ing吗? she likes swimming 为什么要加ing Did you go swimming的swim要加ing吗? 情态动词后面swim要加ing吗 为什么She likes playing tennis 中的 playing 带有ing?不加可以吗? went swimming 为什么swim要加ing swimming lesson为什么swim要加ing swim怎样加ing? 为什么【he likes playing compurter games】里playing要加ing,这是现在进行时吗? "She likes traveling to China"中的traveling为何要加ing啊? she likes writeing stories.为什么wrirer加ing likes后面要不要加动词ing?