| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [conj] [pron] could n't | 56 |
|
| 2 | [coord] [subord] [pron] could n't | 39 |
|
| 3 | [coord] when [pron] [vb mod] n't | 16 |
|
| 4 | [coord] when [pron] [modal v] n't | 16 |
|
| 5 | [coord] when [pron] could [adv] | 14 |
|
| 6 | [coord] when [pron] could [not/n't] | 11 |
|
| 7 | [coord] when [pron] could not | 11 |
|
| 8 | [coord] when [pron] could n't | 9 |
|
| 9 | [conj] when [pron] could n't | 9 |
|
| 10 | [coord] when [pron] could n't | 9 |
|
