他正在吃饭英语？他在吃: He's eating = He is eating 我们在吃:We're eating = We are eating 他们在吃:They're eating =They are eating 早饭：breakfast 午饭：lunch 晚饭：dinner 我在吃（早饭）、（午饭）、那么，他正在吃饭英语？一起来了解一下吧。
He was having dinner when I called him.
He missed the bus so he had to walk home.
A sports meeting will be held next week.
主句一般过去时，从句无特殊情况要变成相应的过去式，即：
I saw that he was eating.
还有一点，一般使用从句，是因为从句担任的成分部分内容过多，无法用简短词语表达，这里完全可以写成
I saw him eating.
原句时态以及最后一个eating有错，作为考试内容没什么问题，但是正常的会话中不会出现这句话，明显的中国式英语思维。
人工翻译：【o'clock now,he's having lunch,but he always watches TV at that time,he plans to visit his friends at 3:00 p.m.】
He is eating when it's 12,while he used to watching TV at 12.He plans to pay a visit to a friend at 3 P.M.
有错。主句用过去式saw 作谓语，宾语从句中也要用相应的过去式，is要改为was。另外，英语吃饭是eating 不是 earing。
以上就是他正在吃饭英语的全部内容，when, while这三个词都有"当……时候"之意，但用法有所不同，使用时要特别注意。①when意为"在……时刻或时期"，它可兼指"时间点"与"时间段"，所引导的从句的动词既可以是终止性动词，也可是持续性动词。如：When I got home, he was having supper.我到家时，他正在吃饭。
