| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that it [be] difficult for [pron] | 10 |
|
| 2 | [that] it [be] difficult for [pron] | 10 |
|
| 3 | [that] it be difficult for [pron] | 10 |
|
| 4 | [that] it [is] difficult for [pron] | 8 |
|
| 5 | [that] it [be] difficult for [pers pn] | 7 |
|
| 6 | [that] it is difficult for [pron] | 7 |
|
