整理 I 後ろに決まった表現が来る副詞 教科書 p.92
Adverbs go with fixed grammar
接続：たとえ／いくら + 普通形ても・でも
even though… also. Emphasize that results do not change despite extreme conditions.
注意 / Note：Check the subject, tense and tone of both clauses; Avoid translating word for word from Vietnamese.
比較 / Compare：Compare with similar samples in the same article to choose according to nuance and connection. Same 課: 決して〜ない／めったに〜ない／必ずしも〜ない／とても〜ない／なかなか〜ない／ぜひ／どうしても／まさか〜ない／もし〜ば／たとえ〜ても — these models are often mistaken for each other, read the 接続 line carefully and then decide.
たとえ雨が降っても、試合は行います。
Even though it rained, the match still took place.
いくら説明しても、分かってくれません。
No matter how much I explain, they still don't understand.
たとえ失敗しても、あきらめません。
Even if I fail, I don't give up.