| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [not/n't] [verb] [adj] | 1053 |
|
| 2 | [pron] could [verb] a [adj] | 890 |
|
| 3 | [pron] could [not/n't] [verb] a | 561 |
|
| 4 | could [not/n't] [verb] a [adj] | 249 |
|
| 5 | [pron] [not/n't] [verb] a [adj] | 32 |
|
