| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have a [noun] | 215 |
|
| 2 | [pron] could [not/n't] have [noun] | 28 |
|
| 3 | [pron] could [not/n't] have a | 28 |
|
| 4 | could [not/n't] have a [noun] | 17 |
|
