He devoted his lifetime to music.

I conjecture his intentions from his actions.

He is a friend for life.

Issei is my best friend.

He refused to take any responsibility at all.

According to one theory, he is said to be the mastermind of the incident.

A passage of this poem deeply resonated with me.

I am studying hard.

We are aiming to kill two birds with one stone with this plan.

You cannot master Japanese in a short period of time.