| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb base] [adv prt] | 1712 |
|
| 2 | when [pron] [vb base] a | 929 |
|
| 3 | [pron] [vb base] [adv prt] a | 575 |
|
