| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] to a | 592 |
|
| 2 | been [vb pp] to a | 558 |
|
| 3 | [be] converted to a | 80 |
|
| 4 | be converted to a | 80 |
|
| 5 | been converted [prep] a | 64 |
|
| 6 | been converted [prep] a | 64 |
|
| 7 | been converted to [art] | 17 |
|
| 8 | been convert to a | 13 |
|
| 9 | [been] converted to a | 13 |
|
| 10 | been converted to a | 13 |
|
