| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] when [pron] [vb past] [pron] | 905 |
|
| 2 | [conj] then [pron] [vb past] [pron] | 608 |
|
| 3 | [conj] then when [pron] [vb past] | 114 |
|
| 4 | then when [pron] [vb past] [pron] | 40 |
|
