He hopes to return to Hong Kong someday. He wants to help contribute to its future. 第二个句子中，主语是he，谓语是wants， to help 是宾语吗？？？ contribute to its future是什么成分？？？ 为什么help后面没有somebody呢？也没有to？？
第二个句子中，主语是he，谓语是wants，to help 是宾语; contribute前面省略了to,即help (to) contribute; （to）contribute作help的宾语; to its future是介词短语，作目的状语，修饰动词contribute，其中的future作介词的宾语, its作定语。 动词help的用法： help sb (to) do...; help (to) do...; help sb with sth; help sb in doing sth; help with sth. ; help in doing sth