| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adv] difficult for | 83 |
|
| 2 | that [pron] is [adv] difficult | 70 |
|
| 3 | that [pron] is difficult for | 16 |
|
| 4 | that [pron] is [adv] for | 14 |
|
