| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is [vb pp] at [art] expense | 8 |
|
| 2 | [noun sg] is [vb pp] at [art] expense | 7 |
|
| 3 | is [vb pp] at [art] expense of | 11 |
|
| 4 | is [vb pp] at [art] expense of | 11 |
|
| 5 | is [vb pp] at [art] expense [prep] | 11 |
|
| 6 | is [vb pp] at [art] expense [prep] | 11 |
|
