が何と言おうと、私は

no matter what ... says, I

→ が
phrase Rare #33,306
no matter what ... says, I Used to emphasize that the speaker's decision or attitude will not change regardless of what someone says. The person before が can be replaced, such as 君が何と言おうと (no matter what you say).
JA: みんなが何と言おうと、私はこの仕事を続けます。
EN: No matter what everyone says, I will continue this work.

他人が何と言おうと、私はその計画を実行する決意である

No matter what others say, I am determined to carry out that plan.

が何と言おうと、私はあきらめない

No matter what you say, I won't give up.

が何と言おうと、私は心変わりしません

No matter what he says, I won't change my mind.

が何と言おうと、私は君のことを信じない

No matter what you say, I don't believe you.

が何と言おうと、私は行くつもりだから

No matter what anyone says, I’m going.