They are swimming
She is swiming now.现在进行时态：她正在游泳。一般现在时：She often swims in the afternoon.
she is swimming
she was swimming
she is swimming now
She is swimming.
英语中第三人称复数统一用they 即，They are swimming. 如要区分性别需要根据上下文
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扶阿婆过马路
