| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] and [vb mod] have been | 9 |
|
| 2 | [vb mod] and [vb mod] have be | 9 |
|
| 3 | could and [vb mod] have be | 8 |
|
| 4 | [modal v] and should have be | 8 |
|
| 5 | could and [vb mod] have be | 8 |
|
