| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [adv] [vb infin] | 1617 |
|
| 2 | it [modal v] [adv] [adv] [vb infin] | 538 |
|
| 3 | it [vb mod] [adv] [adv] [vb infin] | 538 |
|
| 4 | it could [adv] [adv] [vb infin] | 99 |
|
| 5 | it could [adv] [adv] [verb] | 99 |
|
