| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [art] | 120953 |
|
| 2 | then [vb past] [art] | 2440 |
|
| 3 | then [prep] [art] | 2057 |
|
| 4 | then [vb past] [prep] | 1677 |
|
