| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] at [pron] [noun] | 5 |
|
| 2 | could [be] [vb pp] at [pron] [noun] | 5 |
|
| 3 | could [be] [verb] at [pos pn] [noun] | 5 |
|
| 4 | could [be] [verb] at [pron] [noun] | 5 |
|
| 5 | could [be] [verb] at [pron] [noun sg] | 5 |
|
| 6 | could be [verb] at [pron] [noun] | 5 |
|
