| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [noun prp] [v-ing] [adv] | 10 |
|
| 2 | could see [noun] [v-ing] [adv] | 7 |
|
| 3 | could hear [noun] [v-ing] [adv] | 6 |
|
| 4 | could [vb infin] [noun sg] [v-ing] [adv] | 5 |
|
