| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] | 70803 |
|
| 2 | who is [vb pp] | 940 |
|
| 3 | who is [prep] | 511 |
|
| 4 | who [vb pp] [prep] | 5 |
|
