| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | both of [Wh det] [pron] [modal v] [vb infin] | 5 |
|
| 2 | both [prep] [Wh det] [pers pn] [modal v] [vb infin] | 5 |
|
| 3 | both [prep] [Wh det] [pron] [vb mod] [vb infin] | 5 |
|
| 4 | both [prep] which [pron] [modal v] [vb infin] | 5 |
|
