| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [adv] [vb infin] [noun sg] | 34 |
|
| 2 | could not [adv] [verb] [noun sg] | 23 |
|
| 3 | could n't [adv] [verb] [noun sg] | 11 |
|
| 4 | could not even [verb] [noun sg] | 8 |
|
| 5 | could not possibly [verb] [noun sg] | 7 |
|
