| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] on a [noun] | 392 |
|
| 2 | could be [vb pp] on [noun] | 61 |
|
| 3 | could be [vb pp] on a | 50 |
|
| 4 | could be [vb pp] a [noun] | 46 |
|
