～ことができます

～ことができます is a grammatical structure used to indicate the ability to perform an action or the possibility of an event occurring. It is commonly used in polite speech and can be attached to various verbs to express capabilities.

This structure is formed by taking the verb in its dictionary form, followed by the phrase ことができます. For instance, if you want to convey "I can eat," you would use the verb 食べる (to eat), resulting in 食べることができます.

A key nuance to note is that this expression is often used when referring to skills or abilities, rather than just permission. For example, saying "私は日本語を話すことができます" specifies the ability to speak Japanese rather than just being allowed to do so.