| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pers pn] [modal v] have | 1166 |
|
| 2 | if [pers pn] [modal v] have | 694 |
|
| 3 | [vb past] if [pers pn] [modal v] | 602 |
|
