应该是 describe doing sth. 例如：
Several people described seeing strange lights in the sky. 好几个人都说看到天上出现了奇异的光芒。
So far, those witnesses have described watching close family members being questioned, tortured and killed. 迄今为止，那些目击者已经描述了看见家族成员被询问，拷问和杀害。