问题描述: learning English与learn English的区别 1个回答 分类:英语 2014-10-28 问题解答: 我来补答 不同形式,所充当句子成分不同eg .We must (learn English ).和情态动词一起构成谓语It is important( to learn English ) .动词不定式作主语,it 形式主语( Learning English) is important .动名词作主语He began ( learning English) at age 8.动名词作宾语They (are learning English) .他们正在学英语,进行时态, 展开全文阅读