His attitude really makes me mad.

He is thought to be insane.

He took a crazy action.

He is really a forgetful person, always forgetting names.

He swung the long sword with birds' heads carved on the pommel.

This country is ruled by oligarchs.

His hair is long and black.

I plan to get a haircut tomorrow.

He is bad at math and thinks he is dumb.

Because he is bright, he was able to solve the problem immediately.