Health Secretary Wes Streeting acknowledged corridor care remained a problem, saying the NHS was "falling short".
"It should never be normalised," he added.
He said he was committed to ending the practice before the end of the parliament and would soon start publishing data on it to ensure transparency.
But he said on some measures, such as ambulance response times, there had been improvement compared to last year.
And in other areas of care he said patients were "starting to feel the difference", pointing to progress being made on the hospital waiting list.
On corridor care, RCN members described feeling ashamed and embarrassed about the situation, saying patients were being crammed into corridors and treated in kitchens, dining areas and side rooms.
In one case a nurse reported how a patient had died after choking undetected in a corridor, while others said they had to hold up sheets around patients while performing intimate procedures.
One nurse in the north west of England said: "It breaks my heart being in work and there being a patient, usually elderly, on the corridor and coming back two days later and them still being there."
Another for the south west described the system as broken and patients having to go through a "type of torture", while another nurse added: "We would not treat animals like this in a veterinary practice, so why in a hospital?"