It's impossible to conduct business, as they are everywhere".
It would be impossible to conduct business as usual.
It would be impossible to conduct U.S. military operations without Pakistan's good will.
He said he resigned because it was impossible to conduct the country's fiscal affairs.
For most chemical carcinogens, it is impossible to conduct human epidemiological studies, for obvious ethical reasons.
He said it's impossible to conduct a serious, fact-centric investigation in such a, quote, "political environment".
Economics is not physics, and experiments are impossible to conduct with enough control to consistently give us predictable results.
Without more officers and better equipment, he said, it would be impossible to conduct night patrols with American soldiers.
In a BBC interview on Wednesday, Kofi Annan, the United Nations' secretary-general, reiterated his worries that the continuing violence could make it impossible to conduct the elections.
These can all be used by government agencies and businesses to run experiments that would be hard or impossible to conduct in an operational setting.
Indeed, at big companies it has often provided a flexible forum for cutting deals and agreeing directions that would have been impossible to conduct in open debate.
