At first, it was stated with in a game for the Sega Genesis known as "Zero Wing". In which the enemy states "All Your Base Are Belong to Us." The game otherwise was fine it seems, I never played it truely, but looked up on it.
Later a flash movie was made, in which the intro was the scene the phrase was stated then lead to a catchy song. THe words are only versions of "All your base" "all your base are belong to us" and a catchy tune. All the while a flashing of screenshots with the words "All Your Base" are put in to match quite nicely.
To see this and many other renderings, I suggest Newgrounds.
1) How are you gentlemen?
All your base are belong to us.
You are on the way to destruction.
You have no chance to survive make your time.
Ha Ha Ha.
2)All your Base (Base...Base..)
All your base, are belong to us.