What are the names of the classmate groups?

As follows:

1. Youth gathering.

2. We are still here as time passes.

3. Memories that time cannot take away.

4. Front Alliance of Grade 19 Classes.

5. The picture scroll of friendship.

6. Friendship that cannot be lost.

7. We are bohemian.

8. Since ancient times, there have been 8 classes of male gods.

9. Miss those good things.

10. Friendship is as high as a mountain.

11. Us ??that year.