| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] as a [noun] | 9097 |
|
| 2 | [vb pp] [prep] a problem | 85 |
|
| 3 | [vb pp] [prep] a problem | 85 |
|
| 4 | [verb] as a problem | 55 |
|
| 5 | [vb pp] as [art] problem | 52 |
|
| 6 | [vb pp] as [art] problem | 52 |
|
| 7 | [vb pp] as a problem | 45 |
|
| 8 | [vb pp] as a problem | 45 |
|
