| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [is] difficult [to-vb] just how | 8 |
|
| 2 | [pron] [is] difficult [to-vb] just how | 8 |
|
| 3 | it [is] difficult [to-vb] just how | 8 |
|
| 4 | it [is] difficult [to-vb] just how | 8 |
|
| 5 | [is] difficult [to-vb] just how [adj] | 7 |
|
