| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [noun] [verb] | 2390 |
|
| 2 | [adv] [noun] do | 870 |
|
| 3 | [Wh adv] [noun] do | 236 |
|
| 4 | when [noun] do | 42 |
|
