He is still a minor, so he does not have full capacity to act.

I think his abilities are overestimated.

He is overestimating his own abilities.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

I am studying for the Japanese Language Proficiency Test next year.

He believes that he is a psychic.

He cannot enter into a legal contract as a person without legal capacity.