| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] bought at [art] | 10 |
|
| 2 | have [been] bought at [art] | 10 |
|
| 3 | [been] bought at [art] [noun] | 9 |
|
| 4 | [been] bought at [art] [noun sg] | 9 |
|
| 5 | [been] bought at [art] cost | 5 |
|
| 6 | [been] bought at [art] cost | 5 |
|
