| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [prep] this | 2880 |
|
| 2 | then [vb base] [prep] | 1453 |
|
| 3 | then [vb base] this | 74 |
|
| 4 | then [prep] this | 27 |
|
