| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [vb pp] [conj] [art] | 1457 |
|
| 2 | it [is] [vb pp] [conj] when | 21 |
|
| 3 | [is] [vb pp] [conj] when [art] | 12 |
|
| 4 | it [is] [vb pp] when [art] | 8 |
|
