The frequency of such cases is unknown.
However, the frequency of such large eruptions is low – separated by hundreds of years on average.
Then the frequency of such killings began to shoot upward.
I do know that his departure, combined with the frequency of such programming, is an ominous trend.
What if my becoming fully aware of the frequency of such moments makes me terrified to leave my house?
The time that had elapsed since diagnosis was unrelated to the frequency of such triggers.
He mused: "Has anyone asked Oklahoma Senator Inhofe" about the frequency of such destructive storms?
Whatever the frequency of such marriages, the visibility of them has soared.
The key factor is the frequency of such impacts, which can be determined only by experience.
Officials here said that given the frequency of such bombings, they did not believe this one was specifically intended to counter the Saudi's message.
For observers, it has been difficult to tally the frequency of such scattered protests, since the square is vast and police have immediately whisked protesters away.
