| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb base] [adv] | 356 |
|
| 2 | [is] when [pron] [vb base] | 310 |
|
| 3 | [is] [pron] [vb base] [adv] | 283 |
|
| 4 | [is] when [pron] [adv] | 27 |
|
