| Share | Phrase |
|---|
| 25.66% | waste energy [perform operation] |
| 20.28% | work [purpose] waste |
| 11.81% | waste power [perform operation] |
| 9.10% | waste fuel [perform operation] |
| 7.19% | waste heat [perform operation] |
| 6.98% | normally [typicality] waste |
| 6.11% | waste time [perform operation] |
| 5.04% | waste from system |
| 4.19% | not waste |
| 3.59% | waste modal would |