| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when they [vb base] [prep] | 520 |
|
| 2 | [conj] they [vb base] for | 276 |
|
| 3 | when [pron] [vb base] for | 114 |
|
| 4 | when they [verb] for | 57 |
|
