| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb -s] been at the [noun] | 12 |
|
| 2 | [Wh pn] has been at the [noun] | 12 |
|
| 3 | [Wh pn] [vb -s] been at the [noun] | 12 |
|
| 4 | [Wh pn] [vb -s] been at the [noun sg] | 10 |
|
