| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it [is] [adj] [verb] | 215 |
|
| 2 | [Wh det] it [is] [adj] [verb] | 206 |
|
| 3 | [pron] it [is] difficult [verb] | 25 |
|
| 4 | [Wh det] it [be] difficult [verb] | 23 |
|
| 5 | [Wh det] it [is] difficult [verb] | 22 |
|
| 6 | [Wh det] [pers pn] [is] difficult [verb] | 22 |
|
| 7 | [Wh det] [pron] [is] difficult [verb] | 22 |
|
| 8 | [Wh det] it [is] difficult [verb] | 22 |
|
