| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] he could not [verb] [pron] | 132 |
|
| 2 | but [pron] could not [verb] [pron] | 107 |
|
| 3 | but he could [adv] [verb] [pron] | 89 |
|
| 4 | but he could [not/n't] [verb] [pron] | 82 |
|
| 5 | but he could not [verb] [pron] | 82 |
|
| 6 | but he [modal v] not [verb] [pron] | 65 |
|
| 7 | [coord] he could not [verb] [pron] | 50 |
|
| 8 | but he could not [verb] [pron] | 37 |
|
