very | 12 | degree |
for 25% of the population | 6 | transitive-object |
often | 5 | degree |
level → be → difficult | 32 |
level → be → challenging | 14 |
level → be → hard | 12 |
level → be → tough | 7 |
negative | neutral | positive |
0.352 | 0.402 | 0.246 |
Raw frequency | 65 |
Normalized frequency | 0.548 |
Modifier score | 0.456 |
Perplexity | 306.126 |