The theme of the story is that you need to take time and effort on doing things right because soon it will pay off. When we do something, we need to consider the effects of our decision on the future. Some pigs compromised on time and the materials of their houses hence the quality and their safety were also compromised.
1. past
2. had, past perfect
3. has, have, present perfect
4. future
5. present
6. will have, future perfect
and #6 at the bottom is had cleared
