| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] have be [vb pp] | 15409 |
|
| 2 | could have be [vb pp] | 1057 |
|
| 3 | could [pers pn] have [vb pp] | 275 |
|
| 4 | could [pers pn] have be | 94 |
|
| 5 | could [pers pn] be [vb pp] | 85 |
|
