| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [modal v] [adv] | 1116 |
|
| 2 | [vb past] [pron] [modal v] [adv] | 1061 |
|
| 3 | [vb past] if [pron] [modal v] | 619 |
|
| 4 | [vb past] if [pron] [adv] | 53 |
|
