| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] a | 578 |
|
| 2 | has [been] [verb] [det] | 351 |
|
| 3 | [been] [verb] a [det] | 66 |
|
| 4 | has [verb] a [det] | 48 |
|
