| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [prep] a further | 19 |
|
| 2 | been [vb pp] for a further | 11 |
|
| 3 | been [vb pp] for a further | 11 |
|
| 4 | been extended [prep] a further | 6 |
|
