| thoroughly | 10 | manner |
| really | 4 | degree |
| properly | 3 | manner |
| engine → be → cleaned | 67 |
| engine → need → cleaning | 12 |
| engine → require → cleaning | 3 |
| negative | neutral | positive |
| 0.187 | 0.611 | 0.202 |
| Raw frequency | 82 |
| Normalized frequency | 0.535 |
| Modifier score | 0.867 |
| Perplexity | 393.084 |