How to say "Certain" in Japanese

When translating "certain" into Japanese, you must choose carefully between 〜までには and 確かな. In Japanese, 〜までには (〜までには (made ni wa)) is typically associated with "by (a certain time/point), by the time" (Syllabus Level: N3) and represents Indicates a deadline or a completion point. The action must be completed *before or at* that time/point. The particle「は」emphasizes the limit.. On the other hand, 確かな (たしかな (tashikana)) maps to "certain, sure, reliable, accurate" (Syllabus Level: N3) and represents Used to describe something that is definite, reliable, or accurate. It's a な-adjective. e.g., 「確かな情報」. A literal translation of "certain" can often sound unnatural to native Japanese speakers if mixed up!