| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [be] [verb] for [noun] | 14 |
|
| 2 | could [verb] be [verb] for [noun] | 14 |
|
| 3 | could [verb] [been] [verb] for [noun] | 14 |
|
| 4 | could [verb] been [verb] for [noun] | 14 |
|
| 5 | could have [be] [verb] for [noun] | 14 |
|
| 6 | could [vb infin] [be] [verb] for [noun] | 14 |
|
| 7 | could [verb] [be] [vb pp] for [noun] | 12 |
|
| 8 | could [verb] [be] [verb] for [noun sg] | 7 |
|
