彼等が

they (as the subject of a sentence)

→ 彼等
phrase Very common #1,879
they (as the subject of a sentence) 彼等(かれら) means “they,” and が marks it as the subject. 彼ら is the more common spelling; 彼等 is less common and can sound more formal or literary.
JA: 彼等が運動場で野球をするのを見た。
EN: I saw them playing baseball on the playing field.

あっ彼等が来る

Oh, here they come.

彼等がベテランとして私に接触してきました

They reached out to me as seasoned professionals.

— パラサイト 半地下の家族 (2019)

彼等が彼等の先生それほど好きになるとは私は考えもしなかった

I never imagined they would come to like their teacher so much.

彼等が君にいった事は真実ではない

What they told you was not true.

善良な彼等が何か悪事をした

Did those good people do anything wrong?

— パラサイト 半地下の家族 (2019)

彼等が昨日面接した女性はその職を与えられた

The woman they interviewed yesterday was given the job.

すべての事情を考慮に入れるそれは彼等がまちがっていたのだ

Taking all the circumstances into consideration, they were in the wrong.