请高手帮我讲解这短英文,包括句型,语法,词汇等等.谢谢!

首先我想说的是,这段表达,无论是歌词还是散文:真的是很差劲!坐着的表达水平很差劲儿,
关于你所提到的语法,这里我不想多说了,我告诉你个方法,屡试不爽：
将介词前后联系一起的短语,用小括号括起来或者直接去掉,然后再分析语法.如
(All through my life ) I have relived that very first day.Many,many times I have sat and thought about that the first day,and how (for a few fleeting moments) I am there,feeling again what is like to know true love ( for the very first time) .It pleases me that I can still have those feelings now (after all those years,) and I know I will always have them to comfort me.
其实,介词组成的小括号内容,一般都是做状语或补足语.分析长句子时可以先删掉,因为不会影响中心意思的表达.
I have relived that very first day.Many,many times I have sat and thought about that the first day,
（简单的主位语句子：I 是主语,relived 和thought 是谓语动词）
and how I am there,feeling again what is like to know true love .
（特殊疑问句,how提问 还有 what 提问）
It pleases me that I can still have those feelings now
（表语从句,that后面是表语）
所有的句子都要看做主谓宾结构,然后从中变化得出好多句型.不要死记硬背句型,要把各种句型回归主谓宾,看化为哪一部分,了解了,就记住了.
and I know I will always have them to comfort me.