| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb past] [prep] several [noun] | 13 |
|
| 2 | [Wh det] [vb past] [prep] several [noun pl] | 12 |
|
| 3 | which [vb past] [prep] several [noun] | 8 |
|
| 4 | [Wh det] [vb past] for several [noun] | 6 |
|
| 5 | [Wh det] [vb past] for several [noun] | 6 |
|
| 6 | what [vb past] [prep] several [noun] | 5 |
|
