| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [vb infin] [noun] | 923 |
|
| 2 | it could [not/n't] [vb infin] | 469 |
|
| 3 | it could [vb infin] [noun] | 189 |
|
| 4 | it [not/n't] [vb infin] [noun] | 7 |
|
