| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [pron] is for | 121 |
|
| 2 | difficult [pron] [be] for | 31 |
|
| 3 | difficult [pron] be for | 31 |
|
| 4 | difficult [pron] is [prep] | 26 |
|
| 5 | difficult [pron] [is] for | 22 |
|
