thanked
v.v. the past form of 'thank'. You use it to say that you told someone you were grateful for something they did.
v. the past tense and past participle of 'thank', meaning to express gratitude to someone for a service or gift. Transitive — requires a direct object representing the person being addressed.
She thanked him for the beautiful flowers.
After the presentation, the manager thanked the entire team for their hard work over the weekend.
The author thanked her mentors in the preface, acknowledging that their guidance was instrumental in the completion of the manuscript.
The verb is transitive and typically takes the preposition 'for' to indicate the reason for gratitude.
She thanked to himShe thanked himThe verb 'thank' is transitive and takes a direct object without the preposition 'to'.