| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [adv] [vb infin] | 1454 |
|
| 2 | not [adv] [vb infin] [noun] | 1303 |
|
| 3 | could not [vb infin] [noun] | 920 |
|
| 4 | could [adv] [vb infin] [noun] | 809 |
|
| 5 | could not [adv] [noun] | 5 |
|
