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：どうしても + affirmative・negative
no matter what / still not. Demonstrates strong will or inability to achieve despite trying.
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／まさか〜ない／いくら〜ても／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.
どうしても日本で働きたいです。
No matter what, I want to work in Japan.
この問題がどうしても分かりません。
I still don't understand this article.
今日はどうしても行けません。
I can't go today no matter what.