| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [verb] [noun sg] | 267 |
|
| 2 | when it [vb past] [verb] | 205 |
|
| 3 | when it [verb] [noun sg] | 95 |
|
| 4 | when it [vb past] [noun sg] | 44 |
|
