| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could [adv] have be | 121 |
|
| 2 | [subord] [pers pn] could [adv] be | 79 |
|
| 3 | [subord] [pers pn] could have be | 60 |
|
| 4 | [subord] [pers pn] could [adv] have | 59 |
|
