| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that has been [verb] [prep] a | 35 |
|
| 2 | that has [been] [vb pp] [prep] a | 33 |
|
| 3 | that has [been] [verb] by a | 9 |
|
| 4 | that has [been] [verb] as a | 5 |
|
