"But we are not looking at a bubble bursting across the country."

But there is nonetheless a feeling that the bubble could burst.

It still is, although its questionable as to when the bubble will burst.

In any case, it's difficult to predict when bubbles may burst.

We thought the bubble would burst, but it never did.

This bubble some day will burst, and we need to always keep that in mind.

Yet there is widespread speculation about when the bubble will burst.

It all started in 2000, about the time the dot-com bubble was bursting.

The bubble hasn't burst yet because everyone thinks their houses will go on being worth $X million.

I remembered watching the car starting to go down, bubbles bursting around its trunk.