| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] [vb past] | 2636 |
|
| 2 | [prep] [conj] it [vb past] | 469 |
|
| 3 | [prep] if it [verb] | 421 |
|
| 4 | [prep] [subord] it [vb past] | 383 |
|
| 5 | [prep] if it [vb past] | 355 |
|
