| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i could [not/n't] [vb infin] | 4344 |
|
| 2 | [prep] i could [vb infin] | 16 |
|
| 3 | [prep] i could [not/n't] | 8 |
|
| 4 | [prep] could [not/n't] [vb infin] | 6 |
|
