| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [art] more difficult | 23 |
|
| 2 | [adv] [art] more difficult | 22 |
|
| 3 | [adv] the more difficult | 20 |
|
| 4 | all [art] more difficult | 16 |
|
| 5 | all [art] more difficult | 16 |
|
