| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [conj] it [verb] | 356 |
|
| 2 | could [vb infin] [conj] [pron] [verb] | 311 |
|
| 3 | could [vb infin] [conj] [pers pn] [verb] | 297 |
|
| 4 | could [vb infin] [conj] it [verb] | 25 |
|
| 5 | could [verb] [conj] it [verb] | 25 |
|
