| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] difficult for | 78 |
|
| 2 | it is extremely [adj] for | 20 |
|
| 3 | it is extremely [adj] for | 20 |
|
| 4 | it [be] extremely difficult for | 13 |
|
| 5 | it be extremely difficult for | 13 |
|
| 6 | it is extremely difficult [prep] | 11 |
|
| 7 | it [is] extremely difficult for | 10 |
|
| 8 | [pers pn] is extremely difficult for | 9 |
|
| 9 | [pron] is extremely difficult for | 9 |
|
| 10 | it is extremely difficult for | 9 |
|
| 11 | it is extremely difficult for | 9 |
|
