| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] [pron] could [not/n't] | 146 |
|
| 2 | [prep] [pron] [pron] could [not/n't] | 140 |
|
| 3 | [noun sg] [pron] [pron] could [not/n't] | 72 |
|
| 4 | [prep] [noun sg] [pron] [pron] could | 33 |
|
