| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pron] [pron] | 455 |
|
| 2 | [modal v] [vb infin] it [pron] | 369 |
|
| 3 | could [vb infin] [pers pn] [pron] | 196 |
|
| 4 | could [verb] it [pron] | 42 |
|
| 5 | could [vb infin] it [pron] | 42 |
|
