A 形式
动词的主要变比形式:be,was/were,been
动名词/现在分词:being
现在时:
过去时:
be作普通动词用时,各种变化均与上表所列相同。其他时态变化均与普通动词的变化一致。但be除了在被动语态中和第115节B中所述情况下可用进行式外,通常不用进行式。
B 用于构成时态
be用于进行式的主动形式:
He is working/will be working等
be用于所有被动形式:
He was follwed/is being followed等
注意:be可用于被动进行式:
主动:They are carrying him.
他们正抬着他。
被动:He is being carried.
他正被抬着。
2017年12月英语四级作文范文:海外学历的价值
国资充实社保方案出炉 10%国有股权划转社保
体坛英语资讯:Ajax reduce gap with PSV to seven points after convincing win in Dutch league
习近平:实施国家大数据战略加快建设数字中国
加班不肯走 日本公司用无人机赶员工回家
国内英语资讯:China to tighten up plastic use in schools
国际英语资讯:Testimony meeting held in Japans Shizuoka in memory of 1937 Nanjing Massacre
国际英语资讯:Spanish Supreme Court judge looks for more evidence over Catalan Independence referendum
国际英语资讯:Syrian govt, opposition delegations continue indirect peace talks in Geneva
体坛英语资讯:Paraguay striker Barrios on River Plate radar
体坛英语资讯:Ronaldinho planning 2018 farewell tour
国内英语资讯:China to enhance efforts to keep foreign trade, investment stable
国内英语资讯:Chinese government allocates winter disaster relief fund
国际英语资讯:Spotlight: 4 injured in terrorist attack attempt in New York, suspect nabbed
每个人都在想 詹皇的巅峰到底还有多长?
体坛英语资讯:Stoegers biggest challenge with Dortmund: Teach attackers to defend
国内英语资讯:UN should become main platform to practice multilateralism: Chinese FM
国际英语资讯:Spotlight: Russia to withdraw majority troops from Syria, keep two bases
China’s sandwich generation?
拿什么拯救90后的发际线?别急,科学家找到办法啦
国内英语资讯:China, Niue exchange congratulatory messages on 10th anniversary of diplomatic relations
2017年12月英语四级作文万能模板:基本原因
体坛英语资讯:Seedorf to be named coach of Brazils Atletico Paranaense - reports
国内英语资讯:Construction of China-Russia natural gas pipeline gains steam
国内英语资讯:Top political advisor calls for peaceful reunification across Taiwan Strait
国内英语资讯:Premier Li calls for reforms to boost market
国内英语资讯:Chinese procuratorates step up work on pre-litigation procedures
Sweet tooth hazards 爱吃甜食给健康带来的隐患
国际英语资讯:UN, partners launch 4.4 bln dollars plan to support over 5 mln Syrian refugees
国内英语资讯:Top legislature hears economic, law enforcement, procuratorial reports