| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [noun] | 155 |
|
| 2 | could [adv] be [noun] | 105 |
|
| 3 | [modal v] still be [noun] | 92 |
|
| 4 | could still [be] [noun] | 6 |
|
| 5 | could still be [noun] | 6 |
|
