| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [adv] say | 29 |
|
| 2 | could not [adv] say | 29 |
|
| 3 | could n't [adv] say | 21 |
|
| 4 | could not [adv] say | 8 |
|
| 5 | could not really say | 7 |
|
| 6 | could not even say | 7 |
|
| 7 | could not really say | 7 |
|
| 8 | could not even say | 7 |
|
