| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] then [pron] | 849 |
|
| 2 | [prep] then [pron] | 849 |
|
| 3 | by [adv] [pron] | 754 |
|
| 4 | by then [pron] | 282 |
|
