However, it's important to consider the context.
* If you're talking about sharpening a pencil: Then the translation would be "I can sharpen a pencil".
* If you're talking about sharpening something else: You'd need to specify what you're sharpening.
For example:
* "Puedo sacar punta a este cuchillo" would translate to "I can sharpen this knife".
* "Puedo sacar punta a este lápiz" would translate to "I can sharpen this pencil".
Let me know if you can provide more context, and I can give you a more precise translation!