| regularly | 7 | degree |
| as a rule | 6 | manner |
| to ensure satisfactory insulation readings | 5 | purpose |
| appliance → be → tested | 62 |
| appliance → be tested by → competent person | 4 |
| appliance → be tested for → function | 3 |
| negative | neutral | positive |
| 0.097 | 0.751 | 0.153 |
| Raw frequency | 69 |
| Normalized frequency | 0.552 |
| Modifier score | 0.933 |
| Perplexity | 43.651 |