have a bone to pick (with someone)

tener algo que reclamar, tener una queja

• I have a bone to pick with you about yesterday's email.
• She had a bone to pick with her colleague over the missing report.
• After the meeting, he said he had a bone to pick with the manager.

This idiom is used informally in everyday situations when someone wants to discuss a complaint or issue with another person. It's more common in spoken conversation than in formal writing. It is used in both professional and personal settings.

A common mistake is translating it literally from Spanish as 'have something to claim'. This does not convey the meaning of having a grievance and is not how English speakers express the idea. Remember that this idiom does not translate word for word.

• come to terms with (something)
  aceptar, hacerse a la idea de
• a turn of mind
  una forma de pensar, una mentalidad
• in hindsight
  en retrospectiva
• have second thoughts
  tener dudas, replantearse algo