| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be [noun sg] | 456 |
|
| 2 | could [adv] be [noun] | 105 |
|
| 3 | could [adv] be [noun sg] | 74 |
|
| 4 | could [adv] [be] [noun sg] | 47 |
|
