| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [prep] a [noun] | 73 |
|
| 2 | been converted [prep] a [noun] | 31 |
|
| 3 | has been converted [prep] a | 27 |
|
| 4 | has been converted [prep] [noun] | 13 |
|
