are的过去式是were。are是be的第二人称单复数现在式，am和is是单数形式；am，is的过去式是was，are的过去式是were。过去分词都是been。
are的过去式例句：
1、We were all badly bitten by mosquitoes.
我们都被蚊子咬惨了。
2、Engineers noticed that the pipes were not expanding as expected.
工程师注意到管道并没有如预期那样膨胀。
3、They were knocking around together for about a year.
他们交往大概有一年了。
are双语例句
Are you aware these notes are counterfeit?
你觉察到这些钞票是伪造的吗？
Clubs are trumps.
梅花是主牌。
Snakes are carnivorous.
蛇都是食肉动物。
No, those are Ellie&39;s kids. Ours are upstairs.
不，那些是埃利的孩子。我们的都在楼上。
Certain courses are compulsory, others are optional.
某些课程是必修的，其他是选修的。
