| periodically | 5 | temporal |
| depending upon the cycles | 5 | other |
| usually | 4 | degree |
| membrane → be → replaced | 57 |
| membrane → need → replacement | 9 |
| membrane → require → replacement | 4 |
| membrane → require → regular replacement | 3 |
| negative | neutral | positive |
| 0.406 | 0.546 | 0.048 |
| Raw frequency | 73 |
| Normalized frequency | 0.604 |
| Modifier score | 0.820 |
| Perplexity | 185.766 |