| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] for this [noun sg] | 40 |
|
| 2 | been [vb pp] for this purpose | 7 |
|
| 3 | been [vb pp] for this purpose | 7 |
|
| 4 | been used for this [noun] | 6 |
|
