| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] if [pron] [vb past] | 645 |
|
| 2 | [vb pp] [conj] it [vb past] | 623 |
|
| 3 | [vb pp] [subord] it [vb past] | 387 |
|
| 4 | [verb] if it [vb past] | 192 |
|
| 5 | [vb pp] if it [verb] | 117 |
|
| 6 | [vb pp] if it [vb past] | 66 |
|
