てくれてありがとう

てくれてありがとう is a casual, warm way to thank someone for doing something that benefits you. The verb before てくれて is the action the other person performed, in its て-form, followed by くれる in its て-form contracted as くれて. This expresses gratitude for a specific favor or act of help. Use with friends, family, or peers; for polite situations, use てくれてありがとうございます or ありがとうございました. The subject is usually the person who did the action, and the speaker is the beneficiary.