| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [be] agreed at the | 6 |
|
| 2 | [vb past] been agreed at the | 6 |
|
| 3 | [vb past] be agreed at the | 6 |
|
| 4 | [vb past] [been] agreed at the | 6 |
|
