| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [vb infin] i | 30 |
|
| 2 | could n't [verb] i | 25 |
|
| 3 | could [not/n't] believe i | 15 |
|
| 4 | could [not/n't] believe i | 15 |
|
| 5 | could not [verb] i | 5 |
|
