Это правильный глагол. Добавляется только окончание(-ed, -ing и т.д.).
Только неправильные глаголы имеют три формы(do-did-done, fly-flew-flown и т.д.)
It was 13th of July. I just went for a walk with my dog. I walked next to the highway. One strange woman run between cars, everyone shout to her, but she was mad.
Then it was a motorbike. It road so fast. Driver can’t stop, something wrong with the motorbike... Driver killed this woman.
I was shocked. This woman was only 27. Everything was in blood. It was very scary, I wish, I could never see something like this again...