| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [modal v] [verb] | 10507 |
|
| 2 | [pron] [modal v] [verb] [noun prp] | 4295 |
|
| 3 | if [pron] [verb] [noun prp] | 605 |
|
| 4 | if [pron] [modal v] [noun prp] | 6 |
|
