| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it when [pron] [is] [vb pp] | 11 |
|
| 2 | it when [pers pn] [is] [vb pp] | 10 |
|
| 3 | it when [pron] is [vb pp] | 9 |
|
| 4 | it when it [is] [vb pp] | 8 |
|
| 5 | it when it [is] [vb pp] | 8 |
|
