| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who has been [verb] a [noun sg] | 13 |
|
| 2 | who has be [vb pp] a [noun sg] | 8 |
|
| 3 | who has be [verb] a [noun sg] | 8 |
|
| 4 | who has be [verb] an [noun sg] | 5 |
|
