He values his private life.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

He can't learn from his mistakes, just like the proverb 'not returning to the water jar after drinking'.

Complex analysis is a branch of mathematics that studies functions of complex numbers.

I'm sorry, but I don't speak Japanese.

I'm a Muslim, so I fast during Ramadan.

I'm Jewish.