| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [verb] | 2659 |
|
| 2 | it could [vb infin] | 2635 |
|
| 3 | [pron] could go | 1087 |
|
| 4 | [pers pn] could go | 1022 |
|
| 5 | it [modal v] go | 618 |
|
| 6 | it could go | 50 |
|
| 7 | it could go | 50 |
|
