仮定法would have to

仮定法would have to についてです
以下はeminemというラッパーのbeautifulという曲の歌詞なのですが、最後の文でYou'd have toとなっていますがなぜでしょうか。普通にhave toではないのでしょうか？
仮定的な要素がないように感じられたので質問しました。

Lately I’ve Been Hard To Reach
I’ve Been Too Long On My Own
Everybody Has A Private World
Where They Can Be Alone

Are You Calling Me?
Are You Trying To Get Through?
Are You Reaching Out For Me?
Like I’m Reaching Out For You.

(Verse 1)
I’m Just So ******* Depressed
I Just Can’t Seem To Get Out Of This Slump
If I Could Just Get Over This Hump
But I Need Something To Pull Me Out This Dump

I Took My Bruises, Took My Lumps
Fell Down And I Got Right Back Up
But I Need That Spark To Get Psyched Back Up
In Order For Me To Pick The Mic Back Up

I Don’t Know How Or Why Or When
I Ended Up Being In The Position I’m In
I’m Starting To Feel Distant Again
So I Decided Just To Pick This Pen

Up And Try To Make An Attempt To Vent
But I Just Can’t Admit Or Come To Grips
With The Fact That I May Be
Done With Rap, I Need A New Outlet

And I Know Some **** So Hard To Swallow
But I Just Can’t Sit Back And Wallow
In My Own Sorrow, But I Know One Fact
I’ll Be One Tough Act To Follow
One Tough Act To Follow
I’ll Be One Tough Act To Follow
Here Today, Gone Tomorrow
But You’d Have To Walk A Miles

No.1 ベストアンサー 回答者： Wakey 回答日時： 2012/04/08 18:41

最後の文、a miles は変だなと思ったので、歌詞を検索してみました。

　a thousand milesですね。　この後に　if you want to follow me.　を補って考えてみればどうでしょうか。　

今日はここにいても明日にはいなくなってしまうような自分。　（追ってきたいなら）何千マイルも歩かなきゃならないかも知れないぜ。　

のような感じではないでしょうか。。。