| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [prep] [adj] [noun sg] | 27 |
|
| 2 | [modal v] [not/n't] [prep] [adj] [noun sg] | 12 |
|
| 3 | could [not/n't] [prep] [adj] [noun] | 8 |
|
| 4 | could [adv] [prep] [adj] [noun sg] | 6 |
|
