| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | more and [adv] [adj] | 237 |
|
| 2 | [adj] and [adv] difficult | 81 |
|
| 3 | [det] and [adv] difficult | 13 |
|
| 4 | more [conj] [adv] difficult | 11 |
|
| 5 | more and [adv] difficult | 10 |
|
