YOU SAID:
Wait, did he do it because he knew security would come? Why didn't I see it before?
INTO JAPANESE
待ってください、彼は警備が来ることを知っていたからそうしたのでしょうか?なぜ今まで見なかったのですか?
BACK INTO ENGLISH
Wait, did he do that because he knew security was coming? Why haven't I seen it before?
INTO JAPANESE
待って、彼は警備が来ることを知っていたからそうしたのでしょうか?なぜ今まで見たことがなかったのですか?
BACK INTO ENGLISH
Wait, did he do that because he knew security was coming? Why hadn't he seen it before?
INTO JAPANESE
待って、彼は警備が来ることを知っていたからそうしたのでしょうか?なぜ彼はそれを今まで見なかったのでしょうか?
BACK INTO ENGLISH
Wait, did he do that because he knew security was coming? Why didn't he see it before?
INTO JAPANESE
待って、彼は警備が来ることを知っていたからそうしたのでしょうか?なぜ彼はそれを今まで見なかったのでしょうか?
BACK INTO ENGLISH
Wait, did he do that because he knew security was coming? Why hadn't he seen it before?
INTO JAPANESE
待って、彼は警備が来ることを知っていたからそうしたのでしょうか?なぜ彼はそれを今まで見なかったのでしょうか?
BACK INTO ENGLISH
Wait, did he do that because he knew security was coming? Why hadn't he seen it before?
That didn't even make that much sense in English.