が何と言おうと

no matter what ... says

→ が
phrase Uncommon #12,094
no matter what ... says The subject before が is the person whose words are being disregarded.
JA: 彼が何と言おうと、私は行く。
EN: No matter what he says, I'm going.

彼が何と言おうと、私は心変わりしません。

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

人が何と言おうと、汚れたままの暮らしに慣れることなんてない。

No matter what anyone says, you can never get used to living in filth.

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.

彼女が何と言おうと、信じません。

No matter what she says, I won’t believe her.

貴様が何と言おうと俺はあの人を信ずる

No matter what you say, I believe in that person.

— Sanjuro (1962)

きみが何と言おうと私はタバコを吸います。

No matter what you say, I'm going to smoke.

人が何と言おうとかまわないよ。

I don't care what people say.