However, it's important to note that "could" is not always the past participle of "can."
* "Could" as the past participle: It's used in phrases like "He has could go," meaning he was able to go in the past.
* "Could" as a modal verb: It expresses possibility, ability, or permission in the past. For example, "I could see the ocean from my window."
So, while "could" is the past participle of "can" in certain contexts, it also functions independently as a modal verb.