英语翻译请牛人帮我检查下下面一段有没语法错误,如果有麻烦帮我改正下.From 2007 to 2008 he had b

英语翻译
请牛人帮我检查下下面一段有没语法错误,如果有麻烦帮我改正下.
From 2007 to 2008 he had been worked in our company for almost one year.Though it was a part time job,he is responsible for the work seriously.He got corporation’s prize three times because of his hardworking on National Day promotions,Labour Day promotions and so on.I find that Liu is a man who has teamwork spirit.He was always helping his co-worker who had troubles in work.
我不是要翻译啊，那个是我写的，我想问下有没有语法错误