| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i be not sure i could | 13 |
|
| 2 | i be [adv] sure i could | 13 |
|
| 3 | i be [not/n't] sure i could | 13 |
|
| 4 | i be not sure i could | 9 |
|
| 5 | i be sure i could [vb infin] | 21 |
|
| 6 | i be sure i could [verb] | 21 |
|
