| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [vb infin] | 2635 |
|
| 2 | could [vb infin] [noun sg] | 2304 |
|
| 3 | it [vb infin] [noun sg] | 166 |
|
| 4 | it could [noun sg] | 11 |
|
