| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb mod] be [verb] [prep] a | 633 |
|
| 2 | [Wh det] [vb mod] be obtain [prep] [art] | 21 |
|
| 3 | [Wh det] [vb mod] be obtain [prep] a | 7 |
|
| 4 | [Wh det] [vb mod] [be] obtain [prep] a | 7 |
|
| 5 | [pron] [vb mod] be obtain [prep] a | 7 |
|
| 6 | [Wh det] [modal v] be obtain [prep] a | 7 |
|
