I have been studying Japanese for three months.

We have been working on this project for eight months.

It is important for each person to fulfill their role.

He acted according to my instructions one by one.

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

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

Using the private railway makes commuting very convenient.

We respect Japanese culture.

We are going on a trip tomorrow.

He holds a personal grudge against me.