| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] [verb] [not/n't] | 310 |
|
| 2 | [prep] if it [verb] [adv] | 107 |
|
| 3 | [prep] [conj] it [verb] [not/n't] | 53 |
|
| 4 | [prep] [subord] it [verb] [not/n't] | 32 |
|
| 5 | [prep] if it [verb] [not/n't] | 30 |
|
