1、正在进行时中,谓语动词后加ing。如:Im playing football。
2、一些特殊表达,如:be good at doing sth;enjoy doing sth;be busy doing;feel like doing;thank you for doing.
教育百科2023-03-17 15:18:15未知
1、正在进行时中,谓语动词后加ing。如:Im playing football。
2、一些特殊表达,如:be good at doing sth;enjoy doing sth;be busy doing;feel like doing;thank you for doing.
ing的用法 ing的用法规则七年级