He said he had no subjective symptoms.

He is infected with the coronavirus, but he is asymptomatic.

He was known as a quack doctor in that town.

His behavior feels uncertain.

I feel uneasy about his attitude, I have no idea what he's thinking.

Transitive verbs require an object that is directly moved by the subject.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.