可以帮忙分析下这个句子吗you probably couldn't have made it , but you cou

都是对过去的虚拟.
couldn't have done...表否定推测,“不可能做过某事”.
She can't / couldn't have gone to bed,for the light in her room is still on.她不可能上床睡觉了,因为她房间的灯还亮着.
could have done
表示客观上“本来能做某事但实际上没做”.
He could have finished the work in time but he didn't work hard.他本来可以按时干完活的,但他没有卖力.

could have done ：本来可以做但实际没做的事情。
应该不涉及虚拟语气吧。

Spring 是主语had come是谓语 early是状语 that year是状语,后面是with的复合结构 作伴随状语
with是介词 warm quick rains and sudden frothing of pink peach blossoms and dogwood 是介词宾语 dappling是现在分词作最后一个宾语的宾补 with white stars 是现在...