| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [that] it is difficult for | 16 |
|
| 2 | [that] [pron] is difficult for | 16 |
|
| 3 | that [pron] is difficult for | 16 |
|
| 4 | [that] [pers pn] is difficult for | 16 |
|
| 5 | [that] it is difficult for | 16 |
|
