| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [verb] upon to do so | 6 |
|
| 2 | when [verb] upon to do so | 6 |
|
| 3 | when [verb] upon to do [adv] | 6 |
|
| 4 | when [verb] upon to do [adv] | 6 |
|
