| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [adv] [be] | 511 |
|
| 2 | it could [be] [conj] | 163 |
|
| 3 | could [adv] [be] [conj] | 59 |
|
| 4 | it [adv] [be] [conj] | 10 |
|
| 5 | it could [adv] [conj] | 7 |
|
