| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [adj] | 643 |
|
| 2 | [noun prp] could [adv] [be] | 293 |
|
| 3 | [noun prp] [adv] [be] [adj] | 104 |
|
| 4 | [noun prp] could [be] [adj] | 80 |
|
