| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not [vb infin] [adj] [noun] | 4053 |
|
| 2 | could [adv] [vb infin] [adj] [noun] | 1057 |
|
| 3 | could not [verb] [adj] [noun] | 580 |
|
