| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] could [be] [verb] [prep] | 593 |
|
| 2 | [Wh det] could [be] [vb pp] [prep] | 589 |
|
| 3 | [Wh det] [vb mod] [be] seen [prep] | 104 |
|
| 4 | [Wh det] [modal v] [be] seen [prep] | 104 |
|
| 5 | [pron] could [be] seen [prep] | 51 |
|
| 6 | [Wh det] could [be] seen [prep] | 21 |
|
| 7 | [Wh det] could [be] see [prep] | 21 |
|
