| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] more [adj] [to-vb] | 978 |
|
| 2 | [adv] more [adj] [to-vb] | 977 |
|
| 3 | [adv] [adv] difficult [to-vb] | 404 |
|
| 4 | [adv] [adv] difficult [to-vb] | 398 |
|
| 5 | [adv] more difficult [verb] | 276 |
|
| 6 | [adv] more difficult [to-vb] | 275 |
|
| 7 | [adv] more difficult [to-vb] | 275 |
|
| 8 | [adv] more difficult [to-vb] | 275 |
|
