| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] [verb] [det] [noun sg] [prep] | 1212 |
|
| 2 | could [adv] [verb] [adj] [noun sg] [prep] | 226 |
|
| 3 | could [adv] [verb] [det] [noun] [prep] | 177 |
|
| 4 | could [adv] [verb] [det] [noun sg] [prep] | 147 |
|
