| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] much more difficult [subord] | 8 |
|
| 2 | [adv] much [adv] difficult [subord] | 8 |
|
| 3 | [adv] much [adv] difficult than | 7 |
|
| 4 | so much [adv] difficult [subord] | 5 |
|
