I should like to have come earlier.我本想早点来的.句子中的should like t

本想__但实际上没有
表示与过去事实相反的情况
属于虚拟语气
主语+should/would/could/might+have done+其他
例：1. If I had got there earlier, I should/could have met her. 如果我早到那儿,我就会见到她.（事实：去晚了）
2.If he had taken my advice, he would not have made such a mistake. 如果他听我的劝告的话,就不会犯这样的错误了.（事实：没有听我的话）

本想

should like to 本来想
表达一种过去该做，但没做的遗憾的意思

should用于惯用语。【参见<时态>，<虚拟语气>】...should like to表示愿意，想要
应该是have done ,, have came 吧