| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have be [vb pp] | 332 |
|
| 2 | they [modal v] have be [vb pp] | 271 |
|
| 3 | they [vb mod] have be [vb pp] | 271 |
|
| 4 | they could have be [verb] | 48 |
|
| 5 | they could [verb] be [vb pp] | 41 |
|
| 6 | they could have be [vb pp] | 39 |
|
| 7 | they could have [be] [vb pp] | 39 |
|
