before I finish vs I am still in

Some examples from the web:

• Now before I finish, let me just say I did not come here to show out, did not come here to impress you. Because to tell you the truth when I leave here I'm GONE!
• It's gonna be a long time before I finish. One of the many missions that I have to establish. Lyric Meaning. B-Real has a lot of missions, and it may take a while for  ...
• I'ma finish you before I finish the dutch. Lyric Meaning. Saying he will kill/end/ destroy anyone that challenges him quickly even before he finishes his blunt.
• End this game before I finish what you started. Face to face everything will change. Insult After insult [9x] Stand up. I have had enough. Walk away before I finish ...

Some examples from the web:

• I know, I am still in debt to you.
• I have lost all my planets, but I am still in the game, why?
• I am still in the process of recruiting and training new terrorists for the attack.
• And here I am still in line.
• Which means I am still in charge.
• I am still in love with Sarah, and I'm planning on taking her back.
• But... I also need you to know that I am still in love with Lauren.
• I am still in Flanders, the third generation of my humble family, fighting here for Britain's interests.
• You see, if he had wanted to help I am still in prison, Quintiglio and died.
• Which I am still in search of, so if you'll excuse me.
• If the Italians aren't doing roadworks to the same extent as the French, I am still in with a shout here.
• My soul belongs to the Horseman of War, but for now... I am still in control of my actions.
• Commissioner, obviously, I am still French and I am still in favour of the precautionary principle.
• That is why I am working extremely hard to get it on the table to propose to you while I am still in office.
• So I have sent word that I will give them a demonstration, a sign, to show that I am still in control.
• And he's getting it, but make no mistake, I am still in charge of this facility, and until I see that evidence, I must remain skeptical.
• I have to declare an interest: as a broadcaster and a film producer in my time, I am still in receipt of hard-won royalties of one kind or another from some of these activities.
• Four days, and I am still in your lounge!
• Two guineas you charged me, two months ago, and I am still in the family way.
• But I am still in charge, and I am still strong.