| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [prep] a | 2951 |
|
| 2 | [vb past] [adv] upon [art] | 65 |
|
| 3 | [verb] [adv] upon a | 27 |
|
| 4 | [vb past] [adv] upon a | 17 |
|
