ても～なくてもWhether or not
This pattern says that the same result, decision, or judgment applies whether an action happens or does not happen. By naming both possibilities, it makes clear that the choice does not affect the main clause.
Both choices, one result
The first half presents doing the action, and the second presents not doing it. Together they cover both possibilities. The main clause then states what remains true in either case.
彼が来ても来なくても、会議は九時に始めます。
Whether he comes or not, we will start the meeting at nine.
AnalyzeThe meeting time is unchanged in both cases.
Practical uses
The shared result can be an instruction, permission, evaluation, or factual statement.
Why use the pair?
A single clause ending in ても concedes one condition: “even if.” The paired form ても～なくても explicitly includes both doing and not doing, giving the stronger and clearer reading “whether or not.”
More examples
雨が降っても降らなくても、試合は予定どおり行います。
Whether it rains or not, the match will go ahead as scheduled.
Analyzeこの薬は、朝食を食べても食べなくても飲めます。
You can take this medicine whether you eat breakfast or not.
Analyze検査を受けても受けなくても、相談は無料です。
The consultation is free whether you have the examination or not.
Analyze買っても買わなくても、最終的な判断は自分でしてください。
Whether you buy it or not, please make the final decision yourself.
Analyze勝っても勝たなくても、この経験は無駄になりません。
Whether we win or not, this experience will not be wasted.
Analyze申し込んでも申し込まなくても、説明会には参加できます。
You can attend the information session whether you apply or not.
Analyze