| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [vb infin] [verb] | 2608 |
|
| 2 | [not/n't] [vb infin] [verb] i | 524 |
|
| 3 | could [not/n't] [vb infin] i | 147 |
|
| 4 | could [not/n't] [verb] i | 147 |
|
| 5 | could [vb infin] [verb] i | 110 |
|
