| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pron] [adv] [verb] [det] | 46 |
|
| 2 | [vb mod] [pron] [not/n't] [verb] [det] | 32 |
|
| 3 | [modal v] [pron] [not/n't] [verb] [det] | 32 |
|
| 4 | could [pron] [not/n't] [verb] [adj] | 9 |
|
| 5 | could [pron] [not/n't] [verb] [det] | 7 |
|
