| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] a | 12850 |
|
| 2 | [adv] [vb pp] upon | 638 |
|
| 3 | [vb pp] upon a | 399 |
|
| 4 | [adv] upon a | 229 |
|
