+0

Hi! Are these all correct? Thanks, Fulvio

1. I didn't know that there were eggs on this planet.
2. I didn't know that there are eggs on this planet.
3. I didn't know that there weren't eggs on this planet.
4. I didn't know that there aren't eggs on this planet.

+1
yellowstarstruck1. I didn't know that there were eggs on this planet.

These are natural.

I didn't know that there were eggs on this planet.
I didn't know that there were no eggs on this planet.
I didn't know that there weren't any eggs on this planet.