| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [verb] [prep] [be] | 469 |
|
| 2 | if [pron] [vb past] [prep] [be] | 129 |
|
| 3 | [conj] [pron] happened [prep] [be] | 78 |
|
| 4 | if [pron] happen [prep] [be] | 71 |
|
