| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [adv] [verb] | 3124 |
|
| 2 | if [pron] [adv] [vb past] | 978 |
|
| 3 | [conj] [pron] [adv] happened | 97 |
|
| 4 | if [pron] [adv] happen | 27 |
|
