()()がる

くいさがる
godan verb
to hang on; to persist; to refuse to back down
1. to hang on; to persist; to refuse to back down
To stubbornly pursue a point, argument, or negotiation without giving up. Conveys tenacity in pressing for an answer or result.
記者(きしゃ)がしつこく()()がった。
The reporter persistently pressed for answers.
一度(いちど)(ことわ)られても()()がるべきだ。
You should persist even if you're turned down once.
相手(あいて)説明(せつめい)納得(なっとく)できず、最後(さいご)まで()()がって質問(しつもん)(つづ)けた。
Unsatisfied with the other person's explanation, I kept pressing with questions to the end.

An intransitive godan verb. The image is of biting (()う) and hanging on, like a dog that won't let go. Often carries a positive nuance of admirable tenacity, though it can also imply being annoyingly persistent.

ASPECT (ている):
()()がっている describes an ongoing state of persistent questioning or negotiation.

PARTICLE PATTERNS:

  • ~に()()がる (to persist against someone; not common — usually used without a specific target particle)

COMMON COLLOCATIONS:

  • しつこく()()がる (to persistently press)
  • 最後(さいご)まで()()がる (to persist to the very end)
  • 簡単(かんたん)()()がらず()()がる (to persist without backing down easily)