| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] for a further | 47 |
|
| 2 | was [vb pp] for a further | 16 |
|
| 3 | be extended for a further | 14 |
|
| 4 | be [vb pp] for a further | 12 |
|
| 5 | been [vb pp] for a further | 11 |
|
