| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb base] [prep] | 2881 |
|
| 2 | when [pron] [be] [prep] | 2050 |
|
| 3 | [pron] [vb base] [be] [prep] | 2037 |
|
| 4 | when [pron] [vb base] [be] | 203 |
|
