| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but i could [adv] [verb] it | 44 |
|
| 2 | but i could not [verb] it | 42 |
|
| 3 | but i could [not/n't] [verb] it | 42 |
|
| 4 | but i could n't [verb] it | 40 |
|
