请帮我看几个英语句子

The boss want you to tell the customer that this is the largest dress in the shop. (老板让你告诉那位顾客,这是店里最大的裙子)
老板是单数第三人称 want 变成wants

He said he wants you to have dinner at him house.(他说他想让你在他

家吃晚餐)

said 后面时态要一直 wants改 wanted

this case doesn't belong to me,my case is brown with a red zip.
(这个箱子不属于我,我的箱子是棕色的并带有一个红色拉链)
this 大写，其他没错。

what time will you leave for shanghai by plane.
(你几点坐飞机去上海.)
what 大写，其他没错

My watch was ten minutes slow,so I late for my work
我的表慢了10分钟,所以我上班迟到了
so后面的句子没有位于 I 后面加 was

第一句,
The boss wants you to tell the customer that this is the largest dress in the shop. 原句want有误.

第二句,
He said (that) he wanted you to have dinner at his house. 口语中that可以省略不要,原句里wants, him有误.

第三句,
没看出什么问题...

第四句,
似乎也没啥问题...

第五句,
so I was late for my work. 缺动词了.

另外,逗号后要加一空格再继续写,注意格式.翻译都没啥问题.

The boss want you to tell the customer that this is the largest "size" in the shop. (老板让你告诉那位顾客,这是店里最大的裙子)

He said he "wanted" you to have dinner "in" him house.

Tthis case doesn't belong to me. My case is brown with a red zip.语句没问题，语法不对。同一句中不能有两个主语。所以要用'.'断成两句。

What time will you leave for Shanghai by plane？没问题

My watch was ten minutes slow,so I 'was' late for my work.系动词。be late for

一want改为 wants第三人称单数谓语用第三人称
二把him改为 his所有格，
三在with前加 and这是个并列修饰
四把for去掉如果不去意思是“去”而不是“离开”
五把 was改 is表示时间的快慢要用一般时

The boss wants you to tell the customer that this is the largest dress in the shop. （want 改成 wants）

He said he （wanted） you to have dinner at （his） house。
或者 将 saied 改成 says

（This）case （isn’t） belong to me,my case is brown with a red zip。

（What） time will you leave for shanghai by plan？

My watch was ten minutes slow,so I （was ）late for my work

同学，要好好学习哦