| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pron] [vb past] [prep] a | 577 |
|
| 2 | [adv] [pron] [vb past] upon a | 11 |
|
| 3 | [adv] [pron] [vb past] upon [art] | 11 |
|
| 4 | [adv] [pron] [verb] upon a | 9 |
|
