| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [verb] a [noun sg] | 377 |
|
| 2 | he could [verb] a [noun sg] | 260 |
|
| 3 | he could n't [verb] a | 61 |
|
| 4 | he could n't [verb] [noun sg] | 32 |
|
