| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb infin] [conj] | 446 |
|
| 2 | [pron] [vb infin] when | 289 |
|
| 3 | it [verb] when | 279 |
|
| 4 | it [vb infin] [subord] | 221 |
|
| 5 | it [vb infin] when | 17 |
|
