| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [det] [noun] | 288 |
|
| 2 | [verb] [been] [det] discussion | 30 |
|
| 3 | [vb past] [been] [adj] discussion | 8 |
|
| 4 | [vb past] [be] [det] discussion | 7 |
|
