| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have [verb] [noun prp] | 56 |
|
| 2 | [pron] could have [vb pp] [noun prp] | 56 |
|
| 3 | [pron] could have [be] [noun prp] | 34 |
|
| 4 | [pron] could have be [noun prp] | 34 |
|
| 5 | [pron] could have been [noun prp] | 33 |
|
| 6 | [pron] could have [been] [noun prp] | 33 |
|
