| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [noun] | 809 |
|
| 2 | it could [adv] [vb infin] | 481 |
|
| 3 | it could [vb infin] [noun] | 189 |
|
| 4 | it [adv] [vb infin] [noun] | 21 |
|
