| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] have be [vb pp] | 376 |
|
| 2 | [that] could [adv] be [vb pp] | 198 |
|
| 3 | [that] could have be [vb pp] | 54 |
|
| 4 | [that] could [adv] have be | 33 |
|
| 5 | [that] [adv] have be [vb pp] | 15 |
|
| 6 | [that] could [adv] have [vb pp] | 14 |
|
