sentinel

名词复数：sentinels

过去式：sentineled, sentinelled

过去分词：sentineled, sentinelled

现在进行时：sentineling, sentinelling

词形变化：

动词过去式: sentineled/sentinelled | 动词过去分词: sentineled/sentinelled | 动词现在分词: sentineling/sentinelling | 动词第三人称单数: sentinels/sentinels |