| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [verb] [art] | 7085 |
|
| 2 | [prep] whether [verb] [art] | 72 |
|
| 3 | [vb pp] [prep] whether [art] | 53 |
|
| 4 | [vb pp] [prep] whether [verb] | 21 |
|
| 5 | [vb pp] whether [verb] [art] | 14 |
|
