| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] [conj] it | 349 |
|
| 2 | [is] [vb pp] [subord] it | 159 |
|
| 3 | [be] [vb pp] when it | 139 |
|
| 4 | [is] [vb pp] when [pron] | 87 |
|
| 5 | [is] [verb] when it | 27 |
|
| 6 | [is] [vb pp] when it | 24 |
|
