| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who is [vb pp] [verb] [pron] | 18 |
|
| 2 | who is [vb pp] [to-vb] [pron] | 16 |
|
| 3 | who is [vb pp] [verb] [pos pn] | 7 |
|
| 4 | who is [vb pp] [verb] [pers pn] | 7 |
|
