| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [adv] [prep] a | 3133 |
|
| 2 | [vb pp] [adv] upon [art] | 46 |
|
| 3 | [vb pp] [adv] upon [art] | 46 |
|
| 4 | [verb] [adv] upon a | 20 |
|
| 5 | [vb pp] [adv] upon a | 8 |
|
| 6 | [vb pp] [adv] upon a | 5 |
|
