"Able to" and "can" both express ability, but they are used slightly differently.
- Can is a modal verb used to indicate present ability or possibility. For example: "I can swim."
- Able to is often used to emphasize capability, especially in specific contexts or with different tenses. For example: "I am able to swim" (present) or "I was able to swim" (past).
In general, "can" is more common in everyday conversation, while "able to" can sound more formal or specific.
