| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] could [be] [verb] [prep] | 550 |
|
| 2 | [conj] could [be] [verb] [prep] | 550 |
|
| 3 | [conj] [modal v] [be] [verb] to | 540 |
|
| 4 | [conj] [vb mod] [be] [verb] to | 540 |
|
| 5 | [conj] could [be] [verb] to | 66 |
|
| 6 | [conj] could [be] [verb] to | 66 |
|
| 7 | [conj] could [be] [verb] to | 66 |
|
