1.suggest doing sth.建议做某事,如：
I suggested going home.(我建议回家)
suggest that...建议,注意：这是从句中用虚拟语气,即
从句谓语形式是“(should)+动词原型”,如：
I suggested that we should go home.(我建议我们回家)
suggest that...表明,如：
Opinion polls suggest that only 10% of the population trusts the government.(测验表明只有10%的人信任政府)
2.How lovely a boy he is和How lovely a boy is都是错的
应该是 how lovely the boy is!what a lovely boy he is!
感叹句的构成：
what+a(an)+形容词+可数名词单数+（it is）!
换成感叹人也一样,只不过it is改为he is 或she is (同样可以省略)
what+形容词+不可数名词!
what+形容词+可数名词负数+（they are）!
换成感叹人也一样
how+形容词+名词+be!
be要根据名词的单复数改变.
3.would rather+从句,是一个常用的虚拟语气句型
Would rather+从句,谓语一般用过去时来表示现在或将来.其意为“宁愿……,还是…… 好些”“一个人宁愿另一个人做某事”.引导从句的that常省略.在谈到过去的动作时,谓语则用过去完成时.
例 ：
John wants to see me today.I would rather he came to tomorrow than today.约翰今天想去看我.我宁愿他明天来看我而不是今天.(句中came不是表示过去而是表示将来)
We’d rather he paid us the money tomorrow.我们宁愿他明天付给我们那笔钱.
Don’t come tomorrow.I’d rather you came next weekend.明天别来.我希望你下周末来.