| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then [vb past] [pron] | 2634 |
|
| 2 | but then [pron] | 1875 |
|
| 3 | but [vb past] [pron] | 1648 |
|
| 4 | but then [vb past] | 280 |
|
