| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [prep] a | 288 |
|
| 2 | [vb past] [been] [prep] [det] | 200 |
|
| 3 | [vb past] [prep] [det] a | 137 |
|
| 4 | [vb past] [been] [det] a | 48 |
|
| 5 | [been] [prep] [det] a | 39 |
|
