Mark 9:28

ASV — American Standard Version

“And when he was come into the house, his disciples asked him privately, How is it that we could not cast it out?”

KJV — King James Version

“And when he was come into the house, his disciples asked him privately, Why could not we cast him out?”

WEB — World English Bible

“When he had come into the house, his disciples asked him privately, “Why couldn’t we cast it out?””