| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [noun sg] [prep] [art] | 3117 |
|
| 2 | [adv] upon [art] [noun sg] [prep] [art] | 63 |
|
| 3 | [adv] upon a [noun sg] [prep] [art] | 5 |
|
| 4 | [adv] upon a [noun] [prep] [art] | 5 |
|
