| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a series [prep] | 2850 |
|
| 2 | [adv] a series [prep] | 241 |
|
| 3 | [adv] [prep] a series | 191 |
|
| 4 | [adv] [prep] a [prep] | 53 |
|
| 5 | [adv] [prep] series [prep] | 5 |
|
