| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then [vb past] [prep] [art] | 736 |
|
| 2 | [vb past] [prep] [art] next | 211 |
|
| 3 | then [prep] [art] next | 19 |
|
| 4 | then [vb past] [art] next | 12 |
|
