However,when you are a kid,you are looking forward to growing up.可以把句子结构分析一下吗？however表转折连词，when~up是when引导的时间状语从句。主句you~up中，you为主语，are是谓语，looking forward to growing up是介宾短语，应该算是宾语。从句的主语是you，are是谓语，a kid是谓语