| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in which [pron] [modal v] [vb infin] | 615 |
|
| 2 | and which [pron] [modal v] [vb infin] | 55 |
|
| 3 | and in which [pron] [modal v] | 18 |
|
