亲戚有复数，亲戚的英文是relative，复数形式是relatives。根据血统或婚姻关系的远近来说，较近的亲戚用relation，较远的亲戚用relative。relation除表达抽象意思外，还表示特别亲密的关系， relative只含有单纯的亲戚意味。
He had no relatives in California.
他在加利福尼亚没有亲戚。
She has no relatives in town.
她城里没有亲戚。
These are the gifts to friends and relatives.
这些就是送给亲戚和朋友的礼物。
We invited all our relatives to the wedding.
我们邀请了所有的亲戚来参加婚礼。
It is considerate of you to call on your relatives from time to time.
你时时拜望亲戚很周到啊。
She avoided having to work by battening on her rich relatives.
她仗著她那些有钱的亲戚而不必工作， 得以坐享清福。