| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] it [is] | 260 |
|
| 2 | [be] [vb pp] before it | 108 |
|
| 3 | [vb pp] before it [is] | 43 |
|
| 4 | [be] before it [is] | 6 |
|
