| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] upon a series | 8 |
|
| 2 | upon a series of | 10 |
|
| 3 | upon a series [prep] | 10 |
|
| 4 | upon a series of | 10 |
|
| 5 | upon a series [prep] | 10 |
|
