| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] [verb] [adv] in | 146 |
|
| 2 | [adv] difficult [verb] [adv] [prep] | 53 |
|
| 3 | [adv] difficult [verb] [adv] [prep] | 53 |
|
| 4 | [adv] difficult [verb] [adv] in | 6 |
|
| 5 | [adv] difficult [verb] [adv] in | 5 |
|
