第三人称单数形式是rings,例如:

1、Gold rings adorned his fingers.他的手指上戴着几枚金戒指。

2、She wore several diamond rings.她戴了好几个钻石戒指。

3、It may seem a strange story but it rings true to me.这个故事也许显得离奇,但我却觉得很真实。