英文問題提問

想請教廖中老師:

以下是一首歌的歌詞,歌名是"Soledad",是WESTLIFE唱的

If only you could see the tears
In the world you left behind
If only you could heal my heart
Just one more time
Even when I close my eyes
There's an image of your face
And once again I come to realise
You're a loss I can't replace

Soledad
It's a keeping for the lonely
Since the day that you were gone
Why did you leave me
Soledad

1. In my heart you were the only

And your memory lives on
Why did you leave me
Soledad

Walking down the streets
Of Nothingville
Where our love was young and free
Can't believe just what an empty place
It has come to be

1. I would give my life away, If it could only be the same

Cause I can't still the voice inside of me
That is calling out your name

Time will never change the things you told me
After all we're meant to be
Love will bring us back to you and me
If only you could see

這幾個句子的過去式(were,could,would),不太確定是代表假設語氣還是過去式,

因為不論是哪一種語意似乎都不對,想請問老師這幾句是假設語氣還是過去式,還有它們的用法.

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