I had to help my mom cooked dinner just now 哪儿错啦
问题描述：
I had to help my mom cooked dinner just now 哪儿错啦
答
help sb to do 帮助某人作某事...cooked应改成cook
答
帮助某人做某事help sb to do 或者help sb do
答
cooked表示过去时，just now 又表示马上，立即，两者有矛盾
答
help （to）do sth。
cooked改为to cook 或者cook。
答
I had to help my mom TO cook dinner just now