| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be obtain [prep] [det] | 54 |
|
| 2 | [Wh det] [vb mod] be obtain [prep] | 49 |
|
| 3 | [Wh det] [vb mod] be [prep] [det] | 28 |
|
