But for them only a few decades had passed, not half a million years.

Some five decades have passed, and we know all about television now.

But in three cases, more than a decade had passed since the patients died.

And once after a decade had passed, they took another.

No one was arrested and more than three decades passed.

A decade of my life, the best one, has passed, and I suddenly can't seem to find purpose.

And as the decades have passed, no one has suggested otherwise.

But almost a decade passed without anyone being held accountable.

Now that three decades have passed, the weaknesses of the current system are only too well known.

She was only aware of things which I didn't learn till so many decades had passed.