| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] [prep] a | 4755 |
|
| 2 | when [pron] [vb base] [prep] | 2868 |
|
| 3 | when [pron] [vb base] a | 929 |
|
| 4 | when [pron] [prep] a | 9 |
|
