fish的复数形式：fishes、fish。

指鱼的种类时用fishes，其它情况复数用fish。例如two fish，两条鱼；two fishes，两种鱼。一般在名词词尾加s。如：dog-dogs, house-houses, gram-grams，officer-officers.以s,ss,sh, ch及x结尾的名词加es构成其复数形式。如： kiss-kisses, watch-watches, box-boxes, bush-bushes glass-glasses.