| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [verb] it [adv] | 41 |
|
| 2 | could [vb infin] [vb pp] it [adv] | 36 |
|
| 3 | could have [verb] it [adv] | 33 |
|
| 4 | could [vb infin] do it [adv] | 9 |
|
| 5 | could [vb infin] done it [adv] | 9 |
|
| 6 | could [vb infin] put it [adv] | 5 |
|
| 7 | could [vb infin] put it [adv] | 5 |
|
