| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb mod] [verb] as a | 12 |
|
| 2 | who [modal v] [vb infin] as a | 11 |
|
| 3 | who [modal v] act as a | 8 |
|
| 4 | who [modal v] act as a | 8 |
|
