| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] [modal v] | 792 |
|
| 2 | not [prep] if [pron] | 155 |
|
| 3 | not if [pron] [modal v] | 35 |
|
| 4 | not [prep] [pron] [modal v] | 17 |
|
