| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [adv] [be] | 882 |
|
| 2 | could [adv] [be] [subord] | 16 |
|
| 3 | it could [be] [subord] | 12 |
|
| 4 | it could [adv] [subord] | 8 |
|
