| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] it be [adv] | 2009 |
|
| 2 | it could be [adv] | 243 |
|
| 3 | [vb base] it could be | 106 |
|
| 4 | [vb base] it could [adv] | 10 |
|
| 5 | [vb base] could be [adv] | 5 |
|
