| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a | 97581 |
|
| 2 | [vb pp] upon [art] | 1467 |
|
| 3 | [vb pp] upon [art] | 1467 |
|
| 4 | [verb] upon a | 781 |
|
| 5 | [vb pp] upon a | 399 |
|
