| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on which [pers pn] [modal v] [verb] a | 8 |
|
| 2 | on [Wh det] [pers pn] [vb mod] [verb] a | 8 |
|
| 3 | on [Wh det] [pers pn] [modal v] [vb infin] a | 8 |
|
