| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be convert [prep] a [adj] | 34 |
|
| 2 | can be convert [prep] a | 29 |
|
| 3 | can be [prep] a [adj] | 15 |
|
| 4 | can be convert [prep] [adj] | 12 |
|
