Even the tide pattern suggested the attack could not succeed.

He was quick enough, though, to know that his attack could not succeed.

The attack can usually succeed in less than one minute.

This variety of software meant that no single attack could succeed against all systems.

There was a chance that the attack, based on speed and surprise, might succeed.

Once used, any particular attack on us will never succeed again.

Now that the initial attack had succeeded, the most difficult part of the battle was under way.

Had surprise been achieved, the attack would likely have succeeded.

A man of sense, seeing no hope the attack could succeed, would have ordered his men back.

If the wing commander thought another attack might succeed, he would order it.