| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] in [det] [noun] | 664 |
|
| 2 | could [verb] [prep] [det] [noun] | 423 |
|
| 3 | could [verb] [prep] [det] [noun] | 423 |
|
| 4 | could [verb] in [adj] [noun] | 178 |
|
| 5 | could [verb] in [det] [noun] | 78 |
|
