| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] [adv] [noun] | 16 |
|
| 2 | could [verb] [indef pn] [adv] [noun] | 7 |
|
| 3 | [vb mod] [verb] [indef pn] [adv] [noun] | 6 |
|
| 4 | [modal v] [verb] [indef pn] [adv] [noun] | 6 |
|
| 5 | could [verb] [indef pn] [adv] [noun] | 5 |
|
