| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] [prep] a | 971 |
|
| 2 | could [be] [verb] [prep] a | 971 |
|
| 3 | [vb mod] [be] [verb] on a | 561 |
|
| 4 | [modal v] [be] [verb] on a | 561 |
|
| 5 | could [be] [verb] on [art] | 175 |
|
| 6 | could [be] [verb] on [art] | 175 |
|
| 7 | could [be] [verb] on a | 58 |
|
| 8 | could [be] [verb] on a | 52 |
|
| 9 | could [be] [verb] on a | 52 |
|
