| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] was difficult [prep] [be] sure | 5 |
|
| 2 | it was difficult [prep] [be] sure | 5 |
|
| 3 | it was difficult [prep] [be] sure | 5 |
|
| 4 | [pron] was difficult [prep] [be] sure | 5 |
|
