I'm troubled by his unproductive attitude.

He was affected by secondary effects.

This is a preliminary plan.

Thinking sensibly, that plan will not succeed.

He is interested in diachronic linguistics studies.

He is interested in synchronic linguistics.

He is thought to be a very unsociable person.

Anuttara-samyak-sambodhi means the supreme perfect enlightenment in Buddhism.

He ate three apples.

He was a swordsman named Zan in the past.