| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is very difficult for | 8 |
|
| 2 | [that] it is very difficult for | 5 |
|
| 3 | that it is very difficult for | 5 |
|
| 4 | that it is very difficult for | 5 |
|
| 5 | it is very difficult for [pron] | 12 |
|
| 6 | it is very difficult for [pers pn] | 10 |
|
| 7 | it is very difficult for [art] | 6 |
|
| 8 | it is very difficult for [art] | 6 |
|
