| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [prep] [art] [noun] | 2215 |
|
| 2 | [modal v] do [prep] [art] [noun] | 419 |
|
| 3 | could do [prep] [art] [noun] | 188 |
|
| 4 | could do [prep] [art] [noun] | 188 |
|
