| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [adv] | 2207 |
|
| 2 | could [be] [noun sg] | 256 |
|
| 3 | [be] [adv] [noun sg] | 212 |
|
| 4 | could [adv] [noun sg] | 41 |
|
