イエバエはhousefly、houseとflyの合成語。この合成要素をばらして、flyを動詞に見立て、Have you ever seen X Y?のパターンに入れ込み、

Have you ever seen a house fly?

と言えばええのです。これHave you ever seen?ジョーク。例をいくつか紹介します。お手すきの折にでもcompound wordsからお作りください。

Have you ever seen a cat fish?

Have you ever seen a fly fish?

Have you ever seen a complete bed rest?

Have you ever seen a sushi roll?

Have you ever seen a tool box?

Have you ever seen a door stop?

Have you ever seen a sun bathe?

Have you ever seen a back bite?

Have you ever seen a brain wash?

Have you ever seen a/an  __________ ?

KOS