| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [prep] a [det] | 10 |
|
| 2 | has [been] [verb] [prep] a [det] | 10 |
|
| 3 | has [been] [verb] a [det] [noun pl] | 7 |
|
| 4 | has [been] [verb] a [det] [noun] | 7 |
|
