| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [vb pp] [pers pn] [verb] | 154 |
|
| 2 | [Wh adv] it [be] [vb pp] [verb] | 59 |
|
| 3 | [Wh adv] it [be] [pers pn] [verb] | 23 |
|
| 4 | [Wh adv] it [be] [vb pp] [pers pn] | 14 |
|
