| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] a | 53097 |
|
| 2 | [pron] [vb past] upon | 479 |
|
| 3 | [vb past] upon a | 132 |
|
| 4 | [pron] upon a | 10 |
|
