| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [verb] a series of | 59 |
|
| 2 | has [vb pp] a series [prep] | 58 |
|
| 3 | has produced a series [prep] | 5 |
|
| 4 | has made a series [prep] | 5 |
|
| 5 | has produce a series [prep] | 5 |
|
| 6 | has make a series [prep] | 5 |
|
