帮忙看看有没有错,Not only did it reported to be the most deadly bad

Not only did it reported to be the most deadly bad air pollution of all time,but also it last for a long time.
Not only was it reported to be the most deadly (fatal/ notorious) air pollution,but also lasts it for a long time.
前半句是被动问题,后半句是单数第三人称问题,还有两句的时态不同

时态不一致，而且did应该改成was