| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [conj] it [is] [vb pp] | 70 |
|
| 2 | [verb] when it [is] [vb pp] | 60 |
|
| 3 | [vb infin] when [pron] [is] [vb pp] | 11 |
|
| 4 | [vb infin] when it [be] [vb pp] | 10 |
|
| 5 | [vb infin] when it [is] [verb] | 8 |
|
