| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [vb pp] [verb] | 327 |
|
| 2 | before [pron] [is] [vb pp] [verb] | 12 |
|
| 3 | before it [be] [vb pp] [verb] | 8 |
|
| 4 | before it [is] [verb] [verb] | 5 |
|
