| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] a [noun sg] [verb] | 1179 |
|
| 2 | could [verb] [art] [noun sg] [verb] | 495 |
|
| 3 | could [verb] [art] [noun sg] [verb] | 495 |
|
| 4 | could [verb] a [noun sg] [verb] | 165 |
|
| 5 | could [verb] a [noun] [verb] | 147 |
|
