| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] before [pron] could [vb infin] | 24 |
|
| 2 | [prep] it [conj] [pron] could [vb infin] | 22 |
|
| 3 | [prep] it before [pron] [modal v] [vb infin] | 6 |
|
| 4 | [prep] it before [pron] could [verb] | 5 |
|
