| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [vb pp] at the expense | 16 |
|
| 2 | have been [vb pp] at the expense | 16 |
|
| 3 | have be achieved at the expense | 7 |
|
| 4 | has be [vb pp] at the expense | 6 |
|
